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secondary 4 | A Maths
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Sheeeeesh
Sheeeeesh

secondary 4 chevron_right A Maths chevron_right Singapore

Hi please help with questions c and d, thank u!

Date Posted: 3 years ago
Views: 552

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May Min
May Min's answer
24 answers (Tutor Details)
For c, Use a^2 - b^2 = (a-b)(a+b) and cosec^2(A) - 1 = cot^2(A) to solve this eqn
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May Min
May Min's answer
24 answers (Tutor Details)
Convert everything to sinx and cosx, then make the denominator the same. Then, use sin^2(x) + cos^2(x) = 1 to get to the final answer
Sheeeeesh
Sheeeeesh
3 years ago
Thank u