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If the roots of the equation `qx^2 + 2px + 2q =.0` are real and unequal then prove that the roots of the equation` (p + q)x^2 + 2qx + (p - q)=0 `are imaginary,

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 5-EXERCISE
  1. Find the sum of 1 + 5 + 12 + 22 + 35 +….upto n term.

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  2. A straight line passes through A(1, 2) and makes an angle theta with t...

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  3. Find the equations of the lines, which cut-off intercepts on the axes ...

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  7. From definition, differentiate cos4x at 'x=pi/6,will respect to x.

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  8. Prove the following by contradiciton ."The sum of a rational and an ir...

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  9. Show that sqrt7 is an irrational, (use the method of contradiction)

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

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  11. In on examination the probability of a student passed in physics is 2/...

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  14. Exhibit graphically the solution region of the following system of 'in...

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  15. If the roots of the equation qx^2 + 2px + 2q =.0 are real and unequal ...

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  19. Find the following things of an ellipse 9x^2 + 4y^2 + 18x - 16y = 11...

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  20. If S, S' are the foci and' P any point on the rectangular hyperbola x^...

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