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secondary 3 | A Maths
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hell0___
Hell0___

secondary 3 chevron_right A Maths

how do u differentiate this?

Date Posted: 6 years ago
Views: 290

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Jiayang
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hell0___
Hell0___
6 years ago
why does the -100sin^2deta disappears?
Jiayang
Jiayang
6 years ago
cos^2 x - sin^2 x = cos2x