来自邱欲明的问题
f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x)符号打错了
f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)
f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x)符号打错了
1回答
2020-07-24 06:19