Evaluate (\(\sin\)45º + \(\sin\)30º ) in surd form

Evaluate (\(\sin\)45º + \(\sin\)30º ) in surd form

A.

\(\frac{\sqrt{3}}{2\sqrt{2}}\)

B.

√3 − \(\frac{1}{2}\)

C.

\(\frac{1}{2}\)√2

D.

1 + \(\frac{\sqrt{2}}{2}\)

Correct answer is D

hypotenuse
sin = \(\frac{1}{2}\)

\(\sin45 = \frac{1}{\sqrt{2}}\)

= \(\frac{2}{2}\)

∴ (sin45 + sin30)

= \(\frac{1}{\sqrt{2}} + \frac{1}{2}\)

= \(\frac{\sqrt{2}}{2}\) + \(\frac{1}{2}\)

= \(\frac{\sqrt{2} + 1}{2}\)

= \(\frac{1 + \sqrt{2}}{2}\)