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The resultant of two forces of magnitude...

The resultant of two forces of magnitude (x+y) and (x-y) is `sqrt(x^2+y^2)`. The angle between them is

A

`cos^(-1)[-((x^2+y^2))/(2(x^2-y^2))]`

B

`cos^(-1)[-(2(x^2-y^2))/(x^2+y^2)]`

C

`cos^(-1)[-(x^2+y^2)/(x^2-y^2)]`

D

`cos^(-1)[-(x^2-y^2)/(x^2+y^2)]`

Text Solution

Verified by Experts

The correct Answer is:
A
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