>
数学
>
求值
lo
g
2
cos
π
9
+lo
g
2
cos
2π
9
+lo
g
2
cos
4π
9
.
人气:377 ℃ 时间:2020-07-11 02:21:39
解答
lo
g
2
cos
π
9
+lo
g
2
cos
2π
9
+lo
g
2
cos
4π
9
=
log
2
(cos
π
9
•cos
2π
9
•cos
4
9
π)
=
log
2
(
sin
2π
9
2sin
π
9
•
sin
4π
9
2sin
2π
9
•
sin
8π
9
2sin
4π
9
)
=
log
2
1
8
=-3.
推荐
求值:(log(4)3+log(8)3)×(log(3)2+log(9)2)+log(2)(2^5)¼
求值 log(2)9×log(3)2
(log以4为底3+log以8为底3)×(log以3为底5+log以9为底5)×(log以5为底2+log以25为底2)求值
log以9为底16×log以32为底81 求值
log以4为底3×log以9为底2+log以2为底^4√64 求值
C9H20的35个同分异构体的结构简式
I hope you can finish your task().A.success B.successful C.successful D.succed
已知向量OP=(cosθ,sinθ),向量OQ=(1+sinθ,1+cosθ)(θ∈[0,π]),则│PQ│的取值范围是____.
猜你喜欢
there isn't no body .there have one can understand that's me什么意思
英语 根据中文提示完成句子 (21 12:28:15)
锥形体积求计算公式
一辆汽车行5分之4km耗油3分之2kg行1km要耗油多少
若a+b+c=1,则√(3a+1)+√(3b+1)+√(3c+1)的最大值是多少
-my father is a worker and he works hard.-so ____my father .
Jack would likes a cup of tea 哪里错了
沁园春雪与沁园春长沙上阕相同之处与不同之处
© 2024 79432.Com All Rights Reserved.
电脑版
|
手机版