Question

sin^2 45 + sin^2 30 + sin^2 60 =?​

Answer 1

Answer:

⬇

$\frac{3}{2}$

Step-by-step explanation:

$we \: know \: that$

$\sin(45) = \frac{1}{ \sqrt{2} }$

$\sin(30) = \frac{1}{2}$

$\sin(60) = \frac{ \sqrt{3} }{2}$

Therefore,

$\sin {}^{2} (45) + \sin {}^{2} (30) + \sin {}^{2} (60) =$

$\frac{3}{2}$