(1/(√5 -2))^0+cos^2的30度+l sin60度-1 l

问题描述:

(1/(√5 -2))^0+cos^2的30度+l sin60度-1 l

(1/(√5 -2))^0+cos^2的30度+l sin60度-1 l
=1+(√3/2)^2+1- (√3/2)
=2+3/4- (√3/2)
=(11-2√3)/4