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If "cos"^(-1) x/a +"cos"^(-1) y/b=alpha,...

If `"cos"^(-1) x/a +"cos"^(-1) y/b=alpha`, then :
`x^2/a^2 -(2xy)/(ab) cos alpha + y^2/b^2` equals :

Text Solution

Verified by Experts

The correct Answer is:
`sin^(2) alpha`
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