derivative using first principle -

sin_/x (sin under root x)

Differentiate sinx/x from the first principle.

If x root (1+y) + y root (1+x) = 0

Prove that dy/dx = -1/(1+x)²

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derivative of 1)logx by first principle

find the derivative of

• xsinx by first principle

Find the derivative of root tanx from first principles.

evaluate:

lim x-0 [1-cosx (cos2x)^1/2] / x^2

 how can we derivate cosecx by first principle

 lim x tends to zero 1-cos4x / x² ?

Find

1. lim [x],x tends to 2
2. lim [x],x tends to 5/2
3. lim [x].x tends to 1

find the dervative of

• Xsinx from 1st principle

Find derivative of sin2x,cos2x and tan2x using first principle

derivative of sin^n x

derivative of square root of cos x by first principle