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