Question

Sin ^{2} (135) de grade + Sin ^{2} 45 de grace

Answer 1

sin45=√2/2
$sin135=sin(180-45)=sin45$
$sin^{2} 135+ sin^{2} 45=$
$sin^{2} 45+ sin^{2} 45=$
$\frac{\sqrt{2} }{2} ^{2}+ \frac{\sqrt{2} }{2} ^{2}=\frac{2*2}{4} =1$