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Using matrices, solve the following syst...

Using matrices, solve the following system of equations: `2x-3y+5z=11`, `3x+2y-4z=-5`, `x+y-2z=-3`

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-BOARD PAPER SOLUTIONS-All Questions
  1. Evaluate: int2^3 1/x\ dx

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  2. Three bags contain balls as shown in the table below: Bag Numb...

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  3. Using matrices, solve the following system of equations: 2x-3y+5z=11...

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  4. Find the equation of the plane passing through the point (-1,3,2) and ...

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  5. Using the method of integration find the area of the region bounded b...

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  6. Show that: tan(1/2sin^(-1)(3/4))=(4-sqrt(7))/3

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  7. Find the probability of throwing at most 2 sixes in 6 throws of a s...

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  8. Find the equation of the plane passing through the point (1, 3, 2) ...

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  9. A window is in the form of a rectangle surmounted by a semi-circula...

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  10. Using the method of integration find the area of the region bounded b...

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  11. Find the mean number of heads in three tosses of a fair coin.

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  12. The lengths of the sides of an isosceles triangle are 9+x^2,9+x^2 and ...

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  13. If vectors vec a=2 hat i+2 hat j+3 hat k ,\ vec b=- hat i+2 hat j+ h...

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  14. Find the shortest distance between the lines: vec r=6 hat i+2 hat j+2...

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  15. Find the coordinates of the point where the line through (3, –4, –5)...

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  16. Show that the function f(x)=|x-3|,\ x in \R , is continuous but not ...

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  17. If A=[[2,-3,5],[3,2,-4],[1,1,-2]], find A^(-1). Using A^(-1) solve the...

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  18. Find the shortest distance between the following pair of lines and ...

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  19. Let vec a= hat i-\ hat j ,\ vec b=3 hat j-\ hat k and vec c=7 hat...

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  20. A company manufactures two types of toys A and B. A toy of type A requ...

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