Solve for : 2\ tan^(-1)(cosx)=tan^(-1)(2...

Solve for `:` `2\ tan^(-1)(cosx)=tan^(-1)(2\ cos e c\ x)` .

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions

Using elementary transformations, find the inverse of the matrix A = [...
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Three persons A, B and C apply for a job of Manager in a Private Compa...
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Solve for : 2\ tan^(-1)(cosx)=tan^(-1)(2\ cos e c\ x) .
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int(-1)^2|x^3-x|dxdot
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Find the particular solution of the differential equation (1-y^2)(1+lo...
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Find the general solution of the differential equation (1+y^(2))+(x-e^...
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Show that the vectors vec a , vec b and vec c are coplanar if vec a+...
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Find the vector and Cartesian equations of the line through the point ...
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The monthly incomes of Aryan and Babban are in the ratio 3 : 4 and the...
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The two vectors hat j+ hat k and 3 hat i- hat j+4 hat k represent the...
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Prove that: tan^(-1)1/5+tan^(-1)1/7+tan^(-1)1/3+tan^(-1)1/8=pi/4
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Find : int((3sintheta-2)costheta)/(5-cos^2theta-4sintheta)dthetathet...
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Evaluate : int0^pie^(2x)dotsin(pi/4+x)dx
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If x=sint and y=sinp t , prove that (1-x^2)(d^2y)/(dx^2)-x(dy)/(dx)+p^...
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Differentiate tan^(-1)((sqrt(1+x^2)-1)/x) with respect to sin^(-1)...
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If A=(cosalpha-sinalpha0sinalphacosalpha0 0 0 1), find a d jdotA and v...
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If a ,b and c are all non-zero and |[1+a,1, 1],[ 1,1+b,1],[1,1,1+c]|=0...
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Find the values of a and b , if the function f defined by f(x)={x^2...
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A coaching institute of English (subject) conducts classes in two batc...
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If 213(-1 0-1-1 1 0 0 1 1)(1 0-1)=A , then write the order of matrix A...
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