I need to integrate sqrt(1-(x^2))

I know that the reciprical of this integrates to arcsin(x) + k but I don't know how I can relate this.

Any help would be much appreciated :)

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- January 9th 2013, 04:16 PMkinhew93Integrate sqrt(1-x^2)
I need to integrate sqrt(1-(x^2))

I know that the reciprical of this integrates to arcsin(x) + k but I don't know how I can relate this.

Any help would be much appreciated :) - January 9th 2013, 05:23 PMPlatoRe: Integrate sqrt(1-x^2)
Why do you not use web resources like this?

- January 9th 2013, 06:20 PMSorobanRe: Integrate sqrt(1-x^2)
Hello, kinhew93!

Quote:

It should be obvious that this requires Trig Substitution.

Let

. . And: .

Substitute: .

Can you continue?