>
数学
>
1-cosθ/(2sinθ/2)
人气:175 ℃ 时间:2020-04-25 06:31:23
解答
1-cosθ=2*(sinθ/2)^2,因此原式的结果是sinθ/2
推荐
1/(2sinαcosα+cosα^2) 已知tanα=-(1/3)
-1/2sinα-cosα=-1/2求α角
求证:1+cosα+2sin×α/2=2
化简:1-cosθ/2sinθ/2
√1+2sin(π/2+α)cos(π/2-α)=___.
《大公无私》梗概
文中画线句运用 和 描写的方法,
括号内填成语
猜你喜欢
Tom is going to take a train to Beijing.(保持原句意思)
小船用绳牵引,设水平阻力不变,在小船匀速靠岸的过程中则绳子的拉力和船所受浮力变大变小还是不变?
No sooner had we arrived at the cinema _______the film began a than b before c when d as soon as
二分之一(x减1)等于五分之一(x加2) 答案等于多少?
6.Cindy likes exercising very much,so she's-----(slim)than I
Pi=1/3*(8+9+7.6) 这个公式该怎么算?
“拥有你我很幸福”这句话翻译成英文怎么说?
直线ax-2y+2=0与直线x+(a-3)y+1=0平行,则实数实数j?
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版