Thread: Verifying derivatives?

Can someone please help me.. I'm having no luck with help at all I really appreciated if someone would kindly help me with this.

The inverse secant function is often defined for |x| ≥ 1
by y=sec^{ - 1}x <=> sec y = x , 0 ≤ y ≤ π , y ≠ π/2

Verify that the derivative is correct for x > 1

Verify that what derivative is correct? You haven't given us anything to verify.

If then so that

Take the reciprocal of whatever formula you are given for the derivative of inverse secant and see if it looks like the derivative of secant.