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If | (2x, -9), (-2, x) | = |(-4,8) , (1,...

If `| (2x, -9), (-2, x) | = |(-4,8) , (1, -2)|`, then value of x is

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    XII BOARD PREVIOUS YEAR PAPER ENGLISH|Exercise Section D|2 Videos

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII Boards-All Questions
  1. Show that the plane x-5y-2z =1 contains the line (x-5)/3 = y = 2- z

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  2. If x, y, z are different and Delta=|[x, x^2, 1+x^3],[y, y^2, 1+y^3],[...

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  3. If | (2x, -9), (-2, x) | = |(-4,8) , (1, -2)|, then value of x is

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  4. If A is a non- singular square matrix of the order 3xx3 such that A^2=...

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  5. If P(1,0,-3) is the foot of the perpendicular from the origin to the p...

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  6. If A = [ (-3 , 2) , (1, -1)] and I = [(1,0) , (0, 1)], find the scalar...

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  7. Evaluate: int0^(pi/2) (sin2x tan^(-1)(sinx))dx

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  8. Solve the following differential equation: (1+ e ^(y/x)) dy + e^(y...

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  9. If f(x) = sqrt ((sec x -1)/(sec x + 1)) , find f'( pi /3)

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  10. A cottage industry manufactures pedestal lamps and wooden shades.Both ...

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  11. Amongst all open (from the top) right circular cylindrical boxes of vo...

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  12. If tan^(-1) (y/x) = log sqrt(x^(2) + y^(2)), prove that dy/dx = (x+y)/...

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  13. If y=e^{a\cos ^{-1}x},-1lt=xlt=1,show that (1-x^2)(d^2y)/(dx^2)-x(dy)/...

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  14. Find f'(x) if f(x) = tan x^(tan x)

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  15. Amongst all open (from the top) right circular cylindrical boxes of vo...

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  16. the domain of the function f(x) = sin^(-1) (2x) is (a) [0,1] (b) ...

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  17. Using the method of integration find the area of the triangle ABC, ...

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  18. Find the angle between unit vector veca and vecb so that sqrt(3) veca ...

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  19. If A = [ (-3 , 2) , (1, -1)] and I = [(1,0) , (0, 1)], find the scalar...

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  20. Form the differential equation representing the family of curves y = ...

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