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Grade: 12th
        Solve the question given in the figure for me . I am too much confused will solving it. Please...
2 years ago

Answers : (1)

Arun
23357 Points
							
Dear student
 
cos^-1 x + cos^-1 y = \pi - cos^-1 z
Cos^-1 x + cos^-1 y = - cos^-1 z
Now put the formula of cos^-1 a + cos^-1 b
Cos^-1 [x y - \sqrt(1- x²) \sqrt(1-y²) ] = - cos^-1 z
Now
Remove cos^-1 and then solve, you will easily get your answer.
 
Regards
Arun (askIITians forum expert)
2 years ago
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