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In a Delta ABC, the value of angle ...

In a ` Delta ABC,` the value of `angle A ` is obtained from the equation `3 cos A + 2=0` . The quandratic equation , whose roots are `sin A` and `tan A` is

A

`3x^2 + sqrt(5x )-5 =0`

B

` 6x^2 - sqrt( 5) x-5 =0`

C

` 6x ^2 + sqrt(5) x-5=0`

D

`6x^2 + sqrt(5) x+5=0`

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-QUADRATIC EXPRESSIONS-EXERCISE 1A (QUADRATIC EQUATIONS)
  1. IF alpha , beta are the roots of ax^2 + bx +c=0 then the equatio...

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  2. IF alpha , beta are the roots of the equation ax^2+ bx +c=0the...

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  3. In a Delta ABC, the value of angle A is obtained from the eq...

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  4. The equation whose roots are the cubes of the roots of the eq...

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  5. IF alpha , beta are the roots of ax ^2+bx + c=0 and gamma , delt...

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  6. IF a = cos ( (2 pi ) /(7)) + isin ((2pi)/(7)) , alpha = a + a^2+a^...

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  7. Let alpha!=beta satisfy alpha^(2)+1=6alpha,beta^(2)+1=6beta. Then, the...

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  8. IF 3p^2 =5p+2 and 3q^2=5q+2 where p ne q then the equation whose ...

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  9. IF alpha , beta are the roots of the equation x^2+2ax +b=0 , the...

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  10. The quadratic equation for which the sum of the roots is 7 and...

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  11. The quadratic equation for which the sum of the roots is 12 an...

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  12. IF alpha + beta =- 2 and alpha ^3 + beta ^3 =- 56 , then the ...

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  13. Two complex numbers alpha and beta are such that alpha + ...

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  14. IF the arithmetic mean of the roots of a quadratic equation is...

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  15. Let two numbers have arthmetic mean 9 geometric mean 4. then...

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  16. The equation whose roots are the arthmatic mean and twice the ...

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  17. IF alpha, beta are the roots of 9x^2+6x+1=0 then the equation ...

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  18. The equation whose roots are greater by 1 than those of 2x ^2-3x ...

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  19. IF alpha , beta are the roots of ax^2 + bx +c=0 then the equat...

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  20. The equation whose roots are smaller by 1 then those of 2x ^2-5...

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