Question

Evaluate sin 30° + cos45° + tan180° is select the most appropriate answer

Answer 1

Answer:

$\sin(30) = \frac{1}{2} \\ \cos(45) = \frac{1}{ \sqrt{2} } \\ \tan(180) = 0 \\ therefore \: \sin(30) + \cos(45) + \tan(180) \\ = \frac{1}{2} + \frac{1}{ \sqrt{2} } + 0 \\ = \frac{1}{2 \sqrt{2} }$