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If the quadratic equation (b-c)x2+(c-a)x...

If the quadratic equation `(b-c)x_2+(c-a)x+(a-)=0` has equal roots, then show that `2b=a+c`.

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SUBHASH PUBLICATION-ANNUAL EXAMINATION QUESTION PAPER JUNE-2019 (WITH ANSWERS)-EXERCISE
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  2. Find the value of k, in which one of its zeros is -4 of the polynomial...

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  3. Solve the equation x^2-3x-10=0 by using formula.

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  4. If cosec theta=(13)/(12) then find the value of cos theta.

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  5. tan A . Sin A+ cos A=secA

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  6. A box contains 90 discs. Which are numbered from 1 to 90. If one disc ...

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  8. The faces of two cubes of volume 64 cm^3 each are joined together to f...

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  9. Prove that the "Length of tangents drawn from an external point a circ...

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  10. Two concentric circle of radii 5 cm and 3cm are drawn. Find the length...

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  11. Find the mode for the following data in the frequency distribution tab...

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  12. Find the median for the following data in the frequency distribution t...

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  18. Prove that "In a right triangle, the square of the hypotenuse is equal...

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  19. The ages of two students A and B are 19 years and 15 years respectivel...

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  20. If the quadratic equation (b-c)x2+(c-a)x+(a-)=0 has equal roots, then ...

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