Mathematics

Mathematics

Problem

## EXERCISE 12.2 11. Find the derivative of the following functions: (i) sin⁡xcos⁡x\sin x \cos x (ii) sec⁡x\sec x (iii) 5sec⁡x+4cos⁡x5 \sec x+4 \cos x (iv) cosec⁡x\operatorname{cosec} x (v) 3cot⁡x+5cosec⁡x3 \cot x+5 \operatorname{cosec} x (vi) 5sin⁡x−6cos⁡x+75 \sin x-6 \cos x+7 (vii) 2tan⁡x−7sec⁡x2 \tan x-7 \sec x (i) sin⁡xcos⁡x\sin x \cos x (ii) sec⁡x\sec x (iii) 5sec⁡x+4cos⁡x5 \sec x+4 \cos x (iv) cosec⁡x\operatorname{cosec} x (v) 3cot⁡x+5cosec⁡x3 \cot x+5 \operatorname{cosec} x (vi) 5sin⁡x−6cos⁡x+75 \sin x-6 \cos x+7 (vii) 2tan⁡x−7sec⁡x2 \tan x-7 \sec x

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