cos²30°+sin²30°+(根号2-1)²+ 负三的绝对值-(tan60°)²
问题描述:
cos²30°+sin²30°+(根号2-1)²+ 负三的绝对值-(tan60°)²
答
3/4+1/4+2+1-2*根号2+3-3=4-2*根号2
cos²30°+sin²30°+(根号2-1)²+ 负三的绝对值-(tan60°)²
3/4+1/4+2+1-2*根号2+3-3=4-2*根号2