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If a and b are the roots of the equati...

If a and b are the roots of the equations ` P x^(2) - q x + R = 0 ` then what is the value of
`((1)/( a^(2))) + ((1)/( b^(2))) + ((a)/( b)) + ((b)/(a))`

A

`((Q^2-2P)(2R+P))/(PR^2)`

B

`((Q^2-2PR)(P+R))/(PR^2)`

C

`((Q^2-2R)(2P+R))/(P^2R^2)`

D

`((Q^2-2PR)(2R+2P))/(P^2R^2)`

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CHAMPION PUBLICATION-2017 TIER-II PAPER(11)-EXERCISE
  1. If the difference between the roots of the equation Ax^(2) - B x +...

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  2. alpha and beta are the roots quadratic equation . If alpha + beta...

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  3. If a and b are the roots of the equations P x^(2) - q x + R = 0 t...

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  4. If x^(2) - 16 x + 59 = 0 then what is the value of ( x - 6) ^(2) +...

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  5. If A and B are the roots of the equation A x^(2) - A^(2) x + AB = 0...

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  6. alpha and beta are the roots of the quadratic equation x^(2) - x - 1...

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  7. If a + b + c = 9, ab + bc + ca = 26 , a^(3) + b^(3) = 91 , b^(3) + ...

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  8. If x^(3) - 4 x ^(2) + 19 = 6 ( x - 1) then what is the value of [...

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  9. Cost of 8pencils, 5pens and 3erasers is rs.111. Cost of 9pencil, 6pens...

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  10. If 2 x + 3y - 5 z = 18 , 3 x + 2y + z = 29 and x + y + 3z = 17 then ...

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  11. PQR is an equllateral triangle whose side is 10 cm. What is the value ...

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  12. What is the area (in cm^2) of the circumcircle of a triangle whose sid...

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  13. In the given figure, MNOP is a parallelogram. PM is extended to Z. OZ ...

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  14. ABCD is a trapezium in which AB is parallel to CD and AB = 4 (CD). The...

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  15. In the given figure, ABC is an equilateral triangle. Two circles of ra...

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  16. In the given figure, SX is tangent. SX = OX = OR. If QX = 3cm and PQ =...

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  17. PAB and PCD are two secants to a circle. If PA = 10 cm, AB = 12 cm and...

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  18. Triangle PQR is inscribed in a circle such that P Q and R lie on the c...

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  19. In the given figure, angleQRU=72^(@) angleTRS=15^(@)andPSR=95^(@) then...

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  20. What can be the maximum number of common tangent which can be drawn to...

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