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secondary 4 | A Maths
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Hi pls help me with qn 13. Answer for cos2x is ab and sin2x is 1 - b^2 or a^2 - b. I got (a^2 -b^2)/2 for sin2x. Pls help me thank you very much! Part ii too
Date Posted: 2 years ago
Views: 188
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Hi but the answer for sin2x is 1 - b^2 or a^2 - 1
Qn didn't say in only a or only b for sin2x... Without checking the answer, you won't know... Your answer should be acceptable... Check the other photo uploaded, it showed how to get the format same as the answer key...
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