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Two parallel straight lines contains 5 p...

Two parallel straight lines contains 5 points and 10 points respectively.How many triangles can be formed using these points as the vertices of the triangles?

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 8-EXERCISE
  1. Prove by. mathematical induction :1.2+2.2^2+3.2^3+...+n.2^n=(n-1)2^(n+...

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  2. If S1, S2 and S3 be respectively the sum of n, 2n and 3n terms of a G....

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  3. Two parallel straight lines contains 5 points and 10 points respective...

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  4. If the coefficients of 2nd,3rd and 4th terms in the (1+x)^(2n)are in A...

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  5. Vertices of /\XYZ are X(-2, -3),Y (6, 1), and Z(1, 6). Find the co-ord...

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  6. The equations of two sides of a square are 5x+12y-10=0 and 5x+12y+29=0...

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  7. A circle passes through(1,-2) and (4,-3) and its.centre lies on the st...

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  8. A point divides the line segment joining the point (2, -5. 8) and(3, 4...

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  9. Show thatlim(xrarr0)(x^2sin(1/x))/(sinx)=0

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  10. Differentiatesqrttanx,with respect to x.(With the help of 1st principl...

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  11. Using contrapositive method show that the compound statement is are tr...

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  12. If n is real and n > 3, show that n^2 > 9 (use the method of contradic...

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  13. In a family, out of 3 children, one of them at least Boy. Find the por...

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  14. If the variance of lst.n even natural numbers is 65, find the value of...

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  15. Show thatsinalpha+sinbeta+singamma-sin(alpha+beta+gamma)=4sin ((alpha+...

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  16. In /\ABCshow thata^3cos(B-C)+b^3cos(C-A)+c^3cos(A-B)=3abc

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  17. Find the number of permutations and the number of combinations in the ...

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  18. Solve :3x^2+(i-2)x-4i+10=0

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  19. Find the common solution region of the following system of equations.2...

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  20. In a series, the rth term is (2r + 1).2r. Find the sum of 1st n terms ...

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