Find A and B in y=Asinx+Bcosx so that y''-y=sinx.达人应该知道y''是y的导数的导数!

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 04:49:02
FindAandBiny=Asinx+Bcosxsothaty''''-y=sinx.达人应该知道y''''是y的导数的导数!FindAandBiny=Asinx+Bcosxsothaty''''-y=sinx.

Find A and B in y=Asinx+Bcosx so that y''-y=sinx.达人应该知道y''是y的导数的导数!
Find A and B in y=Asinx+Bcosx so that y''-y=sinx.
达人应该知道y''是y的导数的导数!

Find A and B in y=Asinx+Bcosx so that y''-y=sinx.达人应该知道y''是y的导数的导数!
y'=Acosx-Bsinx
y''=-Asinx-Bcosx
因为y''-y=sinx.
所以-Asinx-Bcosx-(Acosx-Bsinx)=sinx
sinx(1+A-B)+cosx(B+A)=0
所以1+A-B=0
A+B=0
解得A=-1/2
B=1/2

Find A and B in y=Asinx+Bcosx so that y''-y=sinx.达人应该知道y''是y的导数的导数! Express the following in the form Ln x=ax+b and find a and b. Find the equation of a line in standard form given:(a) The line is perpendicular to 3x - 5y = 7 and passes through (-5/2, 8/3).(b) The line passes through (a,b) and (c,d). 进Two vectors a and b have the components,in meters a(x)=3.2 a(y)=1.6 b(x)=0.50 b(y)=4.5 1.find the angle between the directions of a and b.There are two vectors in the xy plane that are perpendicular to a and have a magnitude of 5.0 Find a the identity element and b inverse for the operation defined as a*b=a+b+2星号不是乘号···· Find the equation of a line in standard form given:(a) The line has x-intercept 7 and slop -4.(b) The line has is parallel to y = 3 - 2x and passes through the origin. 英语翻译graph y=sinx-cosx on your calculator.Find a single function in the form y=asin(b(x-h))+k that is approximately the same as y=sinx-cosx.For extra coolness,find exact values,instead of approximate ones Mike has been in guangzhou for a month. he wishes to find a jop ____possible.A.as soon as B.as near as C.as often as D.as fast as Climb as ______ as the top of the hill,and you may find the entrance ______ the cave.A.high,in B.far,into C.long,to D.far,to 求英语高手解答一道对比题(答好加分)①The man stopped____whether he was being followed.A.as to find B as if to find②The man we followed suddenly stopped and looked as if___whether he was going in the right direction.A.to see B.se (a) Find the shortest distance from the circle C x^2+y^2-6x+2y-6=0 to the line .x+y=14(b) Find the equation of the line which passes through (0,3) and which is tangent to the circle C in (a). 英语翻译formula:y=A+B•In xinput data items are logarithm of x(In x),and y which is the same as in linear regression.operation for calculating and correcting regression coefficients are basically the same as in linear regressin.operate the s 英语选择,为什么选Canother basic strategy is to find a study partner_____it is possible to identify difficulties,exchange ideas and provide support.A.in that B.for which C.with whom D.such as one old lady is going to leave her job and she wants to find a job (as) language teacher in china.这里为什么用as? c++ACM简单题Description Given two integer sequences A and B,you are to find A-B,the difference of them, (i.e.,the elements that are in A but not in B),and ouput them in increasing order.Equal elements should be treated as the same.InputInput consi Given f(x) = (3x+1)/(x-3),find and write in simplest form:(a) f(f(b))(b) [f(x)-f(a)]/(x-a) i find a dog and a cat as pets find还是用keep 英语翻译一 Given that y varies directly as x^2 and that y=48 when x=4 ,find the equation connecting y and x .