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If vec a and vec b are unit Vectors, t...

If ` vec a` and ` vec b` are unit Vectors, then what is the angle between ` vec a` and ` vec b` so that `sqrt(2) vec a- vec b` is a unit vector?

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions
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  2. Write the differential equation obtained by eliminating the arbitrary ...

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  3. If vec a and vec b are unit Vectors, then what is the angle betwe...

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  4. If a line makes angles alpha,beta,gamma with the positive direction of...

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  5. Find a Vector in the direction of vec a= hat i-2 hat j that has magni...

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  6. Let A = R × R and * be the binary operation on A defined by (a, b) *...

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  7. Find the inverse of the matrix A=[1 3 3 1 4 3 1 3 4]

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  8. If [2x3][1 2-3 0][x3]=O , find x

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  9. Find the equation of the plane through the line of intersection of the...

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  10. A bag contains 4 red and 4 black balls, another bag contains 2 red and...

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  11. One kind of cake requires 200 g of flour and 25 g of fat, and anoth...

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  12. Using properties of determinants, prove that |[(a+1)(a+2),a+2,1],[(a...

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  13. Solve the differential equation x^2dy+(x y+y^2)dx=0 given y=1, when x=...

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  14. Find the particular solution of the differential equation x(dy)/(dx)+y...

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  15. From a lot of 15 bulbs which include 5 defectives, a sample of 2 bulbs...

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  16. Probability of solving specific problem independently by A and B are 1...

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  17. Find the area of the region in the first quadrant enclosed by the y-ax...

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  18. Evaluate : int0^(pi/2)(dx)/(1+sqrt(tanx))

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  19. Show that the four points A, B, C and D with position vectors4 hat i+...

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  20. Find the shortest distance between the lines vec r=( hat i+2 hat j+ h...

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