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Using matrices, solve the following syst...

Using matrices, solve the following system of equations: `2x-y+z=\ -3`, `3x-z=\ -8`, `x+3y=1`

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XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
  1. If y=acos(logx)+sin(logx), prove that (x^2d^2)/(dx^2)+\ x(dy)/(dx)+y=...

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  2. Verify Rolle's theorem for the function on f(x)=\ x^2-5x+6 on [2, 3].

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  3. Using matrices, solve the following system of equations: 2x-y+z=\ -3,...

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  4. Evaluate : int(2x-3)/(x^2+\ 3x-18)\ dx

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  5. Find the derivative of cos(2x+1) w.r.t. x from first principle.

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  6. Evaluate: l i m xvecoo\ ((sqrt(1+x)\ -\ sqrt(1-x))/(sin^(-1)x))

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  7. Find the value of k for which the function f(x)={k x+5, if\ x\ lt=2x-...

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  8. Solve the following differential equation : ("x"^2-1)"dy"/("dx")+2"x...

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  9. Using integration calculate the area of the region bounded by the t...

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  10. Evaluate int0^2(2x^2+\ x+5)dx as limit of a sum.

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  11. Solve the following differentia equation: ("y"^2-"x"^2)"dy"=3"x ydx...

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  12. Verify that "y"="A c o s x"-"B s i nx" is solution of the differenti...

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  13. A window is in the form of a rectangle surmounted by a semi-circle....

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  14. An open box, with a square base, is to be made out of a given quantity...

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  15. Find the intervals in which the function f(x)=x^3-12x^2+36x+17 is (a)...

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  16. Evaluate: int sqrt(tan theta d theta"\)

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  17. Using matrices, solve the following system of equations: 3x-y+z=5 ,...

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  18. Differentiate " "sqrt("tan x")" w"dot"r"dot"t"dot x from first princi...

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  19. Evaluate: (lim)(xvecoo)sqrt(x^2+x+1)-x

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  20. Prove that int"o"^"a""f"("x")"dx"=""int"o"^"a""f "("a"-"x")"dx"dot

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