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Given that cos(3x)=acos^x−bcosx is a

  1. Given that cos(3x)=acos^x−bcosx is a trigonometric identity, what is the value of a+b ?
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    2. Tony asked by Tony
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  2. if tanX=a/b, then show that asinX-bcosX/asinX+bcosx = a^2-b^2/a^2+b^2
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    2. krishan asked by krishan
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  3. Electrons in an oscilloscope are deflected by two mutually perpendicular electric fields insuch a way that at any time t the
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    2. Ashik asked by Ashik
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  4. ifasinx=bcosx=2ctanx/1-tan^2 x prove that(a^2-b^2)^2 =4c^2 (a^2+b^2
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    2. ggggigi asked by ggggigi
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  5. Prove that max & min values of asinx+bcosx are = +/- (a^2+b^2)^1/2
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    2. mahesh asked by mahesh
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  6. Prove that max & min values of asinx+bcosx are =/- (a^2+b^2)^1/2
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    2. Alok asked by Alok
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  7. Given that cos(3x)=acos^3(x)−bcos(x) is a trigonometric identity, what is the value of a+b
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    2. Tony asked by Tony
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  8. Prove thatsin(n+1)Asin(n-1)A + cos(n+1)Acos(n-1)A = cos2A
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    2. Kewal asked by Kewal
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  9. Prove thatsin(n+1)Asin(n+2)A + cos(n+1)Acos(n+2)A = cosA
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    2. Kewal asked by Kewal
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  10. Suppose you are given the function f(x)=sinx+bcosx . Which of the following relationships will ensure that a local extremum
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    2. views icon 46 views