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Often it is taken that a truthful per...

Often it is taken that a truthful person commands, more respect in the society. A man is known to speak the truth 4 out of 5 times. He throws a die and reports that it is actually a six. Find the probability that it is actually a six. Do you also agree that the value of truthfulness leads to more respect in the society?

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions
  1. Prove the following: tan^(-1)sqrt(x)=1/2cos^(-1)((1-x)/(1+x)),\ x\ \ ...

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  2. Prove the following: cos^(-1)((12)/(13))+sin^(-1)(3/5)=sin^(-1)((56)/...

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  3. Often it is taken that a truthful person commands, more respect in ...

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  4. integrate thisint ( x^2+1)/(x^2-5x+6)dx

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  5. In a group of 50 scouts in a camp, 30 are well trained in first aid...

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  6. Find the area enclosed by the parabola 4y=3x^2 and the line 2y=3x+12.

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  7. Find the particular solution of this differential equation (x^2dy)/(dx...

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  8. A manufacturer can sell x items at a price of Rs. (5-x/(100)) each. Th...

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  9. If the sum of the lengths of the hypotenuse and another side of a rig...

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  10. The area of the region bounded by the curve x^(2)=4y and the straight ...

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  11. A die is thrown again and again until three sixes are obtained. Fin...

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  12. Evaluate: int0^pi(xsinx)/(1+cos^2x)\ dx

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  13. Evaluate : int(-1)^2|x^3-x|\ dx

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  14. Evaluate: int(5x-2)/(1+2x+3x^2)dx

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  15. Evaluate : int(sin(x-a))/(sin(x+a))dx

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  16. Differentiate the following function w.r.t. x : x^(sinx)+(sin x)^(...

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  17. If A is an invertible matrix of order 3\ and |A|=5, then find |a d...

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  18. If vec a\ xx\ vec b=\ vec c\ xx\ vec d\ and vec a\ xx\ vec c=\ ...

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  19. Find the value of lamda so that the lines (1-x)/(3)=(7y-14)/(2lamda)=(...

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  20. Solve the following differential equation: (dy)/(dx)+y=cosx-sinx

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