If cos x = 1/2 and sin y = 1/2 find x+y – InterviewSolution

1.

If cos x = 1/2 and sin y = 1/2 find x+y

Answer»

$\large{ \bold{ \cos(x) = \frac{1}{2} }} \\ \\$

$\large{ \bold{ \cos(x) = \cos(60) }} \\ \\$

$\large{ \bold{x = 60}} \\ \\$

$\large{ \bold{ \sin(y) = \frac{1}{2} }} \\ \\$

$\large{ \bold{ \sin(y) = \sin(30) }} \\ \\$

$\large{ \bold{y = 30}} \\ \\$

$\large{ \bold{ \purple{x + y = 90}}} \\ \\$

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