> 数学 >
f(x)=2sin(sinx+cosx) 求值域
人气:190 ℃ 时间:2019-09-22 05:12:02
解答
)f(x)=2sinxcosx+2sin²x
=sin2x+(1-cos2x)
=sin2x-cos2x+1
=√2sin(x-π/4)+1
-√2
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版