teh keng seng & loh cheng yee's additional mathematics (exercise 4f)

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

1

Solutions to Exercise 4F (p. 97−98) Teh Keng Seng and Loh Cheng Yee’s New Syllabus

Additional Mathematics: 8th Edition (Textbook)

1(a)

( )

1(b)

(

)

(

)

1(c)

( )

1(d)

( )

1(e)

(

)

1(f)

( )

2(a)

2(b)

( )

( )

( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

2

√

( ) √( ) ( )( )

( )

√

√

2(c)

( )

√

2(d)

( )

2(e)

( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

3

2(f)

( ) ( )

( )

2(g)

( )( )

2(h)

( ) ( )

( )( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

4

2(i)

( )

( )

( )

( )

( )

( )( )

2(j)

3.

( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

5

( ) (

)

( )( )

4

( )

( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

6

5(a)

( )

5(b)

( )

6(a)(i)

6(a)(ii)

( )

6(b)

( )

( )

( )

( )

7

√ √ √

( )

(√ √

√ )

( )

(√

)

( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

7

(√

)

( )

((

)

)

( )

(( )

)

( )

(

)

( )

8(a)

( )

( )

( )

( )

8(b)

( )

( )

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

8

Year =2016 9(a)

( )

( )

( )

( )

9(b)

( )

( )

( )

(

)

( )

Year = 2018 10(a)

Compounded amount = $254.24 10(b)

Dr CK Lee’s Additional Mathematics Classes ( 91473612 or check out http://ascklee.org/)

9

Time = 13 years and 1 month 11(i)(a)

11(i)(b)

11(ii)

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