Question

Help me please%5C%3A%20find%20%5C%3A%20x%20" id="TexFormula1" title="if \: \sin(x) = \cos(50degree) \: find \: x " alt="if \: \sin(x) = \cos(50degree) \: find \: x " align="absmiddle" class="latex-formula">
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Answer 1

Answer:

x = 40°

Step-by-step explanation:

using the cofunction identity

cos(90 - x) = sin x , so

90 - x = 50 , then

x = 40

that is sin40° = cos50°