2sin^2α-(1+根号3)sinα+根号3/2=0,求锐角α的度数
问题描述:
2sin^2α-(1+根号3)sinα+根号3/2=0,求锐角α的度数
答
(2sina-√3)(sina-1/2)=0
sina=√3/2 sina=1/2
a=60° a=30°