Find , when:y tan x — y2 cos x + 2x = 0

Q15 of 285 Page 409

Find , when:
y tan x — y² cos x + 2x = 0

Let us differentiate the whole equation w.r.t x

Formula :

According to chain rule of differentiation

According to product rule of differentiation

Therefore ,

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xy log (x + y) = 1