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Find the roots of the quadratic equation...

Find the roots of the quadratic equation `3x^2 -2sqrt6 x + 2 =0` by formula method.

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CPC CAMBRIDGE PUBLICATION-PRACTICE QUESTION PAPER 12-ANSWER THE FOLLOWING QUESTION
  1. Prove that if x and y are odd positive integers , then x^2 +y^2 is eve...

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  2. Solve : 100x + 200 y =700 200x+100 y=800

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  3. Find the roots of the quadratic equation 3x^2 -2sqrt6 x + 2 =0 by for...

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  4. Find the value of x in which the points (1,-1) (x,1) and (4,5) are col...

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  5. ABC is a right angle triangle having angleB=90^@ . If BD=DC, show tha...

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  6. Prove that ara of the equilateral triangle described on the sides of s...

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  7. A box contains 90 dices which are numbered from 1 to 90. If one dise i...

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  8. Draw a pair of tangents to a circle of radius 5 cm which are inclined ...

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  9. Prove that (tan theta + sin theta)/(tan theta - sin theta) =(sec theta...

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  10. Asha is 5 times as old as her daughter Usha, 5 years later Asha will b...

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  11. The sum of 2 digits of a 2 digits number is 12 the number obtained by ...

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  12. Find the other two zeroes of the polynomial y^(4)+y^(3)-9y^(2)-3y+18 i...

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  13. Solve for x . 1/(a+b+x) =(1/a + 1/b + 1/x) (Where a ne 0, b ne 0 , ...

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  14. The diagonal of a rectangular filed is 60 meters more than the shorte...

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  15. If the points (7,-2) , (5,1) and (3,5) are collinear. Find the value o...

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  16. Find the area of Rhombus if its vertices are (3,0) (4,5) (-1,4) and (-...

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  17. Prove the tangents drawn from an external point to a circle are equal.

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  18. Find the area of the shaded region in the figure, where ABCD is a squa...

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  19. The distribution below gives the weights of 30 students of a class. Fi...

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  20. Solve graphically : 2x-y=2 and 4x-y=4

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