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If the length of three sides of a trapezium other than the base is 10cm each, find the area of the trapezium, when it is maximum.

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions
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  5. Using elementary transformations, find the inverse of the matrix [[1...

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  7. Solve the following differential equation: 3e^xtany\ dx+(2-e^x)sec^2y\...

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  8. Using properties of determinants, prove that |[a, a+b, a+b+c],[2a,3...

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  9. Write the direction cosines of a line parallel to z-axis.

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  10. If f(x)=(4x+3)/(6x-4),\ x\ !=2/3, show that fof(x)=x for all x!=2/3dot...

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  11. Evaluate: int(cos2x-cos2alpha)/(cosx-cosalpha)\ dxdot

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  12. Evaluate : int(1-x^2)/(x(1-2x))\ dxdot

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  13. Evaluate: inte^x\ ((sin4x-4)/(1-cos4x))\ dx

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  14. Evaluate: int(x+2)/(sqrt(x^2+2x+3))dx

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  15. Differentiate x^(xcosx)+(x^2+1)/(x^2-1)\ wdotrdottdotx

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  16. If x=a\ (theta-sintheta),\ y=a\ (1+costheta),\ \ \ find (d^2\ y)/(dx^...

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  17. If the radius of a sphere is measured as 9 cm with an error of 0.03...

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  18. Prove that y=(4sintheta)/((2+costheta))-theta is an increasing func...

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  19. Evaluate: int(sinx+cosx)/(9+16sin2x)\ dx

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  20. Show that the total surface area of a closed cuboid with square bas...

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