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If the binary operation "." on the set o...

If the binary operation "." on the set of integers `Z ,` is defined by `a*b=a+3b^2,` then find the value of `2*4`

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If the binary operation * on the set Z of integers is defined by a * b=a+3b^2 , find the value of 2 * 4 .

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions
  1. Evaluate: int(3x-1)/((x+2)^2)\ dx

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  2. Evaluate: intx^2tan^(-1)x\ dx

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  3. If the binary operation "." on the set of integers Z , is defined by...

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  4. If int0^1(3x^2+2x+k)dx=0, find the value of k

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  5. Evaluate : int0^(pi/2)(xsinxcosx)/(sin^4x+cos^4x)\ dx

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  6. Evaluate: int0^(pi/2)2sinxcosxtan^(-1)(sin"x")" dx"

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  7. Find the projection of vec a on vec b , if vec a . vec b =8 and vec b=...

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  8. Evaluate : int(sec^2x)/(3+tanx)\ dx

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  9. Using principal value, evaluate the following: sin^(-1)(sin ((3pi)/5...

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  10. Write the value of the determinant |[2, 3, 4],[ 5, 6, 8],[ 6x,9x, 12 x...

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  11. If matrix A=[1\ 2\ 3],\ write A A', where A ' is the transpose of m...

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  12. Find (dy)/(dx), if y=sin^(-1)[xsqrt(\ 1-x)-\ sqrt(x)\ sqrt(1-x^2)\ ]\

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  13. Show that the function f defined as follows, is continuous at x=2 , ...

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  14. Write the cartesian equation of the following line given in vector ...

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  15. Write the position vector of the mid-point of the vector joining th...

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  16. If vec a\ .\ vec a=0 and vec a\ . vec b=0, then what can be conclud...

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  17. If f: R rarr R is defined by f(x)=3x+2,\ define f\ [f(x)]\

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  18. Write the principal value of tan^-1 (-1)

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  19. Write the values of x-y+z from the following equation: [[x+y+z], [x+z ...

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  20. Write the order of the product matrix : [[1], [2], [3]] [[2,3,4]]

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