tanα=-根号3

2025-12-15 06:57:18
推荐回答(1个)
回答1:

tan^2α-(1+根号3)tanα+根号3=0
(tana-1)(tana-根号3)=0
tana=1或tana=根号3
由于a是锐角,则a=45度或60度。请采纳回答