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Vivi3141592
a fost răspuns

Calculati : sin^2(π/4)+sin^2(π/3)

Răspuns :

[tex]\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}}[/tex]