sin30°·tan45°+根号2·cos45°+sin60°·tan60°
问题描述:
sin30°·tan45°+根号2·cos45°+sin60°·tan60°
答
sin30°·tan45°+根号2·cos45°+sin60°·tan60°
=1/2x1+√3x√2/2+√3/2x√3
=1/2+√6/2+3/2
=2+√6/2