Need help with qns 19 and 20 thanks

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secondary 3 | E Maths
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secondary 3 E Maths Singapore

Need help with qns 19 and 20 thanks

Date Posted: 3 years ago

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19 (a) uses comparison

Date Posted: 3 years ago

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19 (b) uses answer from (a) to get the answer

Date Posted: 3 years ago

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Question 20 uses substitution

Date Posted: 3 years ago