Question

sin x sin (cos x) integration​

Answer 1

Answer:

cos(cosx)+c

Step-by-step explanation:

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Answer 2

Step 1
Let cos x = t
Differentiating both the sides w.r.t.x
-sin x = dt/dx
dx=dt/-sin x


Step 2
Intergrating function
{ sin x . sin (cos x) .dx

Putting values of t and dt
{ sin x . sin t . dt/-sin x
- { sin t .dt
-(-cos t + C )
cos t+ K
Putting t=cos x
cos(cos x) + K