Question

Calculati : sin^2(π/4)+sin^2(π/3)

Answer 1

$\sin^2\dfrac{\pi}{4}+\sin^2\dfrac{\pi}{3}=\left(\dfrac{\sqrt 2}{2}\right)^2+\left(\dfrac{\sqrt{3} }{2}\right)^2=\dfrac{2}{4}+\dfrac{3}{4}=\boxed{\dfrac{5}{4}}$