Q18 of 36 Page 1

Find

OR


Find


Given:


--- (i)


Let, z = x + sinx


Differentiating both sides,


⇒ dz = (1 + cosx)dx


Replacing the value of z and dz in (i),



Putting the value of z,



OR


Given:


We know that, cos2x = cos2x – sin2x, using this formula we get,





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