Differentiate the following functions with respect to x :
a+sin x1+a sin x
We have,
ddx(a+sin x1+a sin x)
Using quotient rule, we get
(1+a sin x)ddx(a+sin x)−(a+sin x)ddx(1+a sin x)(1+a sin x)2
=(1+a sin x)cos x−(a+sin x)a cos x(1+a sin x)2=cos x+a sin x cos x−a2cos x−a sin x cos x(1+a sin x)2
=(1−a2)cos x(1+a sin x)2