Sine and cosine derivatives
Sine and cosine derivatives
4 marks
TGM Original
Angles are in radians. Given y=cos(2 x - 5), find dydx. Hence find its value at x=0.
Solution:
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Answer:\(\dfrac{\mathrm{d}y}{\mathrm{d}x}=- 2 \sin{\left(2 x - 5 \right)}\); at \(x=0\), \(2 \sin{\left(5 \right)}\).
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