If the sin 30° = , then the cos 60° = _____. 0, because the angles are complementary , because the angles are complementary , be
2 answers:
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<u>ANSWER</u>
<u>EXPLANATION</u>
Given
and
We want to find
This means we substitute the function in to another function
and evaluate.
This implies that;
We expand the parenthesis to obtain;
We simplify further to obtain;
Hence the correct answer is A