Question

find the derivative of and find theta
f(x)=sinx+cosx​

Answer 1

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Q:-find the derivative of and find theta

f(x)=sinx+cosx

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------>>>>Here is your answer<<<<--------

$➪f(x ) = sinx + cosx$

➪f'(x)=cosx-sinx

➪f'(x)=0

cosx-sinx=0

➪cosx=sinx

$➪1 = \frac{sinx}{cosx}$

1=tanx

$➪tan \theta = 1 \: at \: \theta = \frac{\pi}{4}$

$➪x = \frac{ \pi}{4}$

HOPE IT HELPS YOU..

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