Question

$6 cos (60) - sin(30 ) + sin ^{2} ( 45 ) + cos ^{2} (45) find \: \: the \: solution$
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Answer 1

$6 \cos(60) - \sin(30) + { \sin }^{2} (45) + { \cos}^{2}(45) \\ \\ = 6 \times \frac{1}{2} - \frac{1}{2} + \frac{1}{2} + \frac{1}{2} \\ = 3 + \frac{1}{2} \\ = \frac{7}{2}$