y=cos(x+π/2)+cos的最大值怎么求?
y=cos(x+π/2)+cos的最大值怎么求?
數(shù)學(xué)人氣:305 ℃時(shí)間:2020-07-26 08:58:42
優(yōu)質(zhì)解答
cos(pai/2+x)等于負(fù)的sin(x),再用輔助角公式(asinx+bcosx=根號(hào)下(a方加b方)乘以sin(x+o)《o為另一變量,有tano=b/a》)得原式等于負(fù)的根號(hào)2乘以sin(x減pai/4)看不懂你寫(xiě)什么啊!
我來(lái)回答
類(lèi)似推薦
- 函數(shù)y=sin(π2+x)cos(π6-x)的最小正周期為_(kāi).
- 函數(shù)y=2+cosx/2?cosx的最大值為_(kāi).
- y = cos3 x + sin2 x - cos x 的最大值為 在您對(duì)此問(wèn)題的回答中 為什么cos x 不必求導(dǎo)
- y=3-2*cos(x-π/4) 的最大值
- α+β=120°,cos α+cos β=1/2(x+y),求x+y的最大值
- 函數(shù)f(x)=sinx-cosx^2的最小值是?
- 英語(yǔ)翻譯
- I took my grandpa to the hospital this morning,_____ I missed the first class.
- So crazy
- 方差是各個(gè)數(shù)據(jù)與平均數(shù)之差的平方的平均數(shù)
- 函數(shù)y=f(x)與它反函數(shù)y=f^-1(x)怎么讀?
- These are photos of my families.Look at them 改錯(cuò)
猜你喜歡
- 1平面與平面重合,是否屬于平行一類(lèi)?那重合的兩直線,也屬于平行一類(lèi)的嗎?
- 2非洲每年因饑餓死亡的人數(shù)及現(xiàn)在饑餓人口數(shù)量拜托各位了 3Q
- 3decide to do sth.還=什么
- 4(7/8)o you think of london?B:5.____london is one of the liveliest cities
- 5啤酒可以托運(yùn)嗎
- 6邊長(zhǎng)為2√6的等邊三角形的中心到一邊的距離為?
- 7please give your hand to help me
- 8已知2的X次方等于3的Y次方等于6的Z次方不等等于1,證明X分之一加Y分之一等于Z分之一.
- 9幫我做做?
- 10機(jī)械分析天平TG628A的使用說(shuō)明書(shū)
- 11in winter ,we wear warm coats to protect our bodies_.
- 12( )was most importance to her ,she told me,was her family it this what as