Question

differentiate the question ​

Answer 1

cos 2 x =1-2sin2 x

1-cos2 x = 2 sin2 x

cis2 x =2cos2 x

cos2 x+1 = 2 vis2 x

A= √2 sin2 x/2 cos2 x = √tan2 x =1+tan x 1

dA/dx = d /dx |tan x | = sec2 x ....ans

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