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asked Jan 19, 2018 in Mathematics by sforrest072 (157,439 points)

If cos y =xcos (a+y), with cos a ≠ +l , prove that dy/dx = cos²(a+y) /sin a

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answered Jan 19, 2018 by mdsamim (213,225 points)
selected Jan 19, 2018 by sforrest072

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If cosy =xcos (a+y), with cos a ≠ +l , prove that dy/dx = cos^2(a+y) /sin a

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