Question

$sin ^{4}α + 2sin ^{2}αcos ^{2} α + cos ^{4}α =$

Answer 1

α = alpha

$sin ^{4}alpha + 2sin ^{2}alphacos ^{2} alpha + cos ^{4}alpha=(sin^2alpha+cos^2alpha)^2=1^2=1$

Answer 2

спс