1980-12-15 — Page 25

教育閾港真一第張七第日九初月一十年申庚夏

1981

中學會考試題預習專欄

經濟

(+)

明德出版社陳勵德

●王啓光 固提供資料

Economics (10).

K. K. Wong & L. T. Chan

(Mill & Dale Press Ltd.)

LOCATION OF INDUSTRY Questions.

1. What are the main ::

determinants of the location

of light industries in

Hong Kong?

The main determinants

of the location of light industries in Hong Kong are as follows:

(1) Avalability of labour is

critical to light industries which are mostly labour- intensive. Thus, light industries tend to be located near population centres, e e.g. light

industries in Kwun Tong, Cheung Sha Wan.

(2) Water supply, the second

determinant, is important to those light industries which require a large amount of water, e.g. dyeing, laundry, brewing and chemical industries. (3) The third factor is power

practically all industries.

which is essential to

(4) The fourth determinant is

external economies. The dyeing and garment manufacturing firms as well as new textile firms. tend to be set in Tsuen Wan for the sake of external economies,

(5) The firth factor is land

value. The rising land prices actually force. certain industrialists to locate their industrial sites in less developed areas. (6) The sixth determinant is

transport, and developed transport enables firms to set up their factories away "from population centres. (7) Another factor is:

government measures such. as the setting up of Industrial Estates Provisional Authority, the planned development zones for industry, e. g. Shatin, Castle Peak etc., the prohibition of certain industries in certain areas: to prevent pollution, e.g. the removal of tannery to Kwai Chung, and the assigning of land for special projects,

存技

WAH KIU YAT PO

一于十一月爲香港九十

除行副爲首的兩個。

|除行動的鼦[爲灣仔

「隆市民的注意,恢復

·香港奥動于一九七二

「捨除」的目的,在于3

及深水埗。

推行「按月分區大

「珠。(本報記者攝 展会,昨舉行開幕i社會事務可何鴻整主持 歯示:中華基督教會主辦「我愛香港」綜合

第消尙

頁二息有

張刋港

第在聞

2. What are the main

determinants of the location of heavy industries in Hong Kong?

上述國區, 係市景一組人风等。

The main heavy industries in Hong Kong are as follows: machinery and machine tools industry, shipbuilding and repair industry, and aircraft. engineering industry. These industries are usually localized in certain areas in Hong Kong. The following are the main determinants of their locations:

(1) Availability of land:

This is an important factor in determining the location of shipbuilding and repair industry, which requires a large area of land site for carrying out the production of shipbuilding and repair. The same reason.holds. true for the aircraft. engineering industry especially rising wages, it is known as cost-push

inflation.

(3) Imported inflation

Question

This type of inflation usually occurs in economies which are small and depend a lot on international trade e.g. Hong Kong. These small countries generally have no strong influence or bargaining power over the prices of their exports or imports and are thus called pricetakers. When an inflation occurs somewhere else, it may sooner or later be

imported into these countries and imported inflation is said to have occurred.

1. What is inflation and what are

the common causes of inflation? Discuss the effects. of inflation upon the daily life of an average Hong Kong consumer today?

to

Inflation refe conditions when the general prices and costs of goods and services are rising continuously (ie, the value of money is declining in a continuous manner). The common causes of inflation are as follows:

(a) Inflation may be caused by an increase in the amount of money in circulation or by a drop in the supply of goods and services.

(b) It may occur as a result

of excess demand (1.e.

郭日儒華

白近

「新汽車保險賠償

獲業內人士支持 101 75

期星

.那秀給女士及區內政府 茶叙中並有卽時恐行

政公署決給分處主任

台灣,展舃藝等地旅游

PEHCHEPK

有

改變對保險築的影响」案規定經潑水火保檢或 一個爲「法例及經剪障投購保險人士。新滋」政工作難樂,商戶及一七四李牧師接洽。 李生會商學系會保險,管人對此極表贊同。 評選及追蹤。 會,爲送提高科學們對,在談及保險打法例禸 這個爲期一週的十樓浛號報名手 保險業知糠興趣,昨日,些强盡示政府有意隔互助」節包括有備案,我PK八五 在理工學院演講空歇辦實施新法例,以加强係與區內居民茶聚,暢談一九三三八國H七八七三 TREBLGE÷K*]

理工學會舉行研討會 分析保険業未来趣向 家居民代天五十歩人, 物部,精疲

一楼訊心理工學院一受害者獲得賠償的利各瓦助標語創作比賽之後,被受申請,

BES. REMERT

士,保險性册處在級任一資產須超過魚二百萬

政府保險監餐主任 特發行股本五百萬元及

香理保註國

EHENGE 9** R*

EGENFORD BRIKE

KYRIE

工蕤師服登棱;及胡若,而經營保陰行業,可說 -險公會主席米茲爾·理未經保被注册官批准;

凯斯五千萬元。

HSXSK-E

市政署總動員清潔環境

車保險局將保意外保

·提高之際,新成立的河 -

滿求知學習氣氛。後于中低及流商地區。去除垃圾黑點。 交通就外傷亡數字不就被間題謝發間:塲面一大掃除」行動期間,先有資源,集中人力物力, 內容談及目前本港上·同學就保,去月推行「按月分區被掃工作,猛利用現 (E) #RECER | IPC

一躍一萬奪九茲拉圾,以 及四百一十車狂物。

除時,區內所有市人 BENTEKE

例及經濟改變對保險的影响」研討會。(本 示:理工學院保險罦會擧溙爲「泆

外,當並向區內居民,除進行的一個月內,每》 市著發言人說,此風都會總動員,于大摘

「報記者:

demand-pull inflation)

induced by an increase in

demand of goods and

services.by consumers as

well as overspending by

firms or by governments.

(c) Inflation may occur

because of rising costs of production. (i.e. cost- push production).

(d) Inflation may be caused by natural disasters, social disturbances or wars. It may also be caused by the deliberate policy of the government or speculatus who stock- Pile

goods in order to force the price level upwards to realize abnormal profits.

The effects of inflation upon the daily life of an average Hong Kong consumer

are:

The effects of inflation upon different groups

of consumers are essentially different. In general, there will be a rise in the prices of consumer goods and services e.g. rents, food stuffs etc. The purchase and consumption patterns of consumers will change accordingly, Necessary goods increase in demand while spending on luxuries will be decreased. Savings will also be less and people will try to earn more money to increase their real incomes. Generally speaking debtors and people whose incomes respond quickly to inflation will gain while creditors and people with relatively fixed income will lose. Lower income people will likely be hurt more because of the rise in the prices of necessary items. Thus, there is generally a redistribution of income.

The people in Hong Kong will tend to purchase more imported items since these. products are now relatively cheaper than before because of inflation. When hyper- inflation occurs, there will be a fall in investment and unemployment will result. Likewise, as the prices of exports of Hong Kong rise due to inflation, the ⠀⠀⠀ competitive power of these items will be weakened and exports tend to decrease. Since Hong Kong is so export dependent, the economy of Hong Kong and hence the life of the consumers will be adversely affected.

日五十月二十年〇八九一圈公年九十六國民華中

.........

DRIK •

明秋舉行歡迎廠商參加

一九八一電子展品展覽

本港新聞

十二月廿一日八星期日 一百篇一綜合晚會,將於 是次活動之壓酷了。

TECEDENCÉK 樂,以輕盤形式將部 一等,希望能寓教於 一會,與及各項比賽活 BR-RKENKAS 小販之聯絡,廉政工作.

雖然近年本港挝子產品出口数值不斷增加;但在海外市場所面臨之恩宇亦 10

·M的露與海內外客商介紹各項海製锇子產品,此推廣榮路。他又指出,談中,迎區內步 洪寶商認加。有關股驚收費桀法及紐則,將於日凍另行公佈。據機監錄像一師、阿術表演,同時並 日,在九散美麗米涸店舉行。會場估計可容納約二百伋展骝難位,歡迎本一、木偶劇、舞、融 委員會主席表示,該項要窮乃首次在港繼離之非牟利性質雅子產品照顧,一舉行各項比賽活動之個人 「包括有民歌、粵曲,話】

: 一九八一年香港银子展品展霸,定於明年十月十四日市

一九八一年香港甲子產品展窮裙舞委员会由工商礬、香港中密廠商聯

监督敎主恩肚今年

日趨劇烈,所以必須慶開各樻促淤貿易活動,聚瀅展覧會就是表佳方法之 基教主恩社 貿易A股局、在愔行、開遠實業有烶公司、德商慶利洋行遠東公司、香港安排遊台灣,與當地效 會之詳細交料可向上述機綁或香港出口商會秘書查詢,花:六八 青年假期團定廿三萬 分會、香港出口商会、香我爺子商会、香港總商會、安港工業總會、籌,聖誕章篇部份社阿特别 義記及億遠雄棠有附公司代裝組成,負資無辦À,會各項工作。有關點 會箫徒同渡總處佳節。 惴一千五百元,敬 ELDER COOKI

發行程八天:費用只

聖誕遊台灣

啟爾政,共同蘊設史美 幽結互助精神,齊心推 森崎新宿深水民政主六十歳以上老人・ 好的社會,出席是次開一出一千三百餘元,優 POKEBEKLEREO,

1981

中學會考試題預習專欄

附加數 (+)

明德出版社岑彦俊提供資料

Add, Maths (10)

Solutions to Exercise 5:

1.(a) 2sinxcos x-1-sin

2y

2ginx(1-sin x)+sin_x-1=0

2sinx-2sin x+sin

2sin x-sin ̋x-2ginx+1=0.

32

2y+1-0 where y-sinx (y-1) (y+1) (2y-1)=0

= 1-1 or

sinxel - x90

sibx=-1 ⇒ x=270"

x= ⇒ x=30°, 30 90°

(b) 2sin x=1400sx

2sin x cosx-1=0

1.50

2(1-cos x)-cosx-1=0

2

2008 x+cosx-1=0 (2e0sx-1)(cosahe

2

150°

300%

cosx= 1 > x=1800 x=60 180, 300°. (c) tan xtanx)= tanx

tanx tanx 1),5(tanx (tanx−1)(tanr 13 ) 0 tanx=1 3 2 5 or 225 taux 13.3

*o*=60° x=45, 60, 295°

3tanx 4+2seex

3a1nx

COSX

2

CosX

3sinx 4cosx+2

4cosx-3sinx

9x sinx =

Ө

or 240

270°

cos@cosx-sinəsinx===

cos(x+63° 26')=-0.4472 where 9-tan~'(-)=63°26'

+243 26 -116.34

243261 x=53-9' or 180°

5. (a) cosx+cos2x+cos3x=0

CO8X+COS3x+cos2x=0 2cos2xcosx+cos2x=0). cos2x(2cosx+1)=0.

cos2x=0 ⇒ 2x=90° ex-45 135

Cost-25 x=120

x=45 120 135

Ans

270

240

2400

Ans.

(b) 605msin2xcosix-s Ans

cosx cosx-(sin2rsin x) 0 2cos2xcosx-2sin3xcosx=0

Ans.

240°

Ans

cosecosx-siuesinx=-0.

-1

where Ostan (*)=56°52'

cos(x)==0), 4 ̈ ̈ .e. cos(36°5o1+x)=-0.4 56 520+x=11335 or

246 2517 76°431 or 209 331. Ans

viensx= sinx

42 Nocosx+2sinx=1

✔8

sinxer

cos@cosx-sinesinx=0.3535 cos(x-30°)=0.3535

=

30°

where tau{

x-30 =69% 18+ or 290 x=99"18" or 320 42. Ans.

2ginx-1=COSX

cos sinx=-1

coax-inx--

cos

cosx-sin32) 0

cosx 0 =90 270 Co92x=sin3x

sin(90°-2x)=sin3x → 90-2x-3x

X-18

x=18 90 270°

sinɔx-sin4x+sin5x=0

2sin(3*+5*)cos(3x-5x)

-sin4x=0

Psin4xcos(-x)—ain4x= gin4x(2cosx-1)=0

gin4x=0 →

90 360°

360°

180

270

Ans

300

180

270 300 360°

ginx+siny+sinz-sin(x+y+2)

(sinx+siny +[sinz=sin(x+y+z}] -2sïn^2_cos-2-¿cos

2sin(cos-co+y+]

2x+22

si-singin-2y-2z

X+V

(b) L.H.S.

=cos2x+cus2y+cos2z+1

cos 2 x + 2 y c

2c0s-

2x+2y

2x-2y

cos2 [180-(x+y)}+ since x+y+2=180° =2cos(x+y)cos(x-v)

cos2(x+y)+1 ~2cos(x+y) cos(x-y).

2cos (x+y)=1+1° =2cos(x+y) (cos(x-y

cos(x+y)]*

=2cos(x+y)2cosxcosy

-4cos(180 -z)cosxcosy

H.S.

Ans

=-4cosxcosycosz-..S..

(c) LIS

Ang

=cos x+cos ̋y+cos z =(1+cos2x)+*(1+cos2y)+

(1+cos22)

−2+1 (cos2x+cos2y+cos?z)

+(-4cosxcosycosz-1) -1-2c09xcosycosz=R.H.S.

Ang.

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