suggested answers to 2015 o level additional …...suggested answers to 2015 o level additional...

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PENCILTUTOR SCHOOL PTE. LTD. Co. Reg. No. 200601708E Blk 102, #02-135 Yishun Avenue 5 Singapore 760102 Tel: 62571231 Fax: 62571921 http://www.penciltutor.com 1 Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3

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Page 1: Suggested answers to 2015 O level Additional …...Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3 PENCILTUTOR SCHOOL PTE. LTD

PENCILTUTOR SCHOOL PTE. LTD. Co. Reg. No. 200601708E Blk 102, #02-135 Yishun Avenue 5 Singapore 760102

Tel: 62571231 Fax: 62571921 http://www.penciltutor.com 1

Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3

Page 2: Suggested answers to 2015 O level Additional …...Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3 PENCILTUTOR SCHOOL PTE. LTD

PENCILTUTOR SCHOOL PTE. LTD. Co. Reg. No. 200601708E Blk 102, #02-135 Yishun Avenue 5 Singapore 760102

Tel: 62571231 Fax: 62571921 http://www.penciltutor.com 2

1

Page 3: Suggested answers to 2015 O level Additional …...Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3 PENCILTUTOR SCHOOL PTE. LTD

PENCILTUTOR SCHOOL PTE. LTD. Co. Reg. No. 200601708E Blk 102, #02-135 Yishun Avenue 5 Singapore 760102

Tel: 62571231 Fax: 62571921 http://www.penciltutor.com 3

Page 4: Suggested answers to 2015 O level Additional …...Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3 PENCILTUTOR SCHOOL PTE. LTD

PENCILTUTOR SCHOOL PTE. LTD. Co. Reg. No. 200601708E Blk 102, #02-135 Yishun Avenue 5 Singapore 760102

Tel: 62571231 Fax: 62571921 http://www.penciltutor.com 4

𝑎𝑐 > 9, 𝑎 < 0 𝑎𝑛𝑑 𝑐 < 0

Teacher’s Comment

Any two values of a and c which

satisfy the above conditions will be

accepted.

Page 5: Suggested answers to 2015 O level Additional …...Suggested answers to 2015 O level Additional Mathematics (A Maths/ Add Maths) 4047 Paper 1 Part 1/3 PENCILTUTOR SCHOOL PTE. LTD

PENCILTUTOR SCHOOL PTE. LTD. Co. Reg. No. 200601708E Blk 102, #02-135 Yishun Avenue 5 Singapore 760102

Tel: 62571231 Fax: 62571921 http://www.penciltutor.com 5