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If a^(2)+(1)/(a^(2))=27, then the value ...

If `a^(2)+(1)/(a^(2))=27`, then the value of `a-(1)/(a)` is __________.

A

`pm5`

B

`pm6`

C

`pm7`

D

`pm8`

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The correct Answer is:
A
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PEARSON IIT JEE FOUNDATION-POLYNOMIALS, LCM AND HCF OF POLYNOMIALS -CONCEPT APPLICATION (LEVEL 1)
  1. If a+(1)/(a)=3, then the value of a^(2)+(1)/(a^(2)) is .

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  2. If a^(2)+(1)/(a^(2))=27, then the value of a-(1)/(a) is .

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  3. The expansion of (x^(2)+4)(x^(2)-4)(x^(4)+16) is .

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  4. If the value of a^(2)+(1)/(a^(2)) is 786, then the value of a-(1)/(a) ...

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  5. Which of the following is the factor of 4a^2+b^2-4a b+2b-4a+1?

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  6. Expand (x/3-y/2)^2

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  7. Simplest form of ((2a)/5 +(3q)/5)^3- ((2a)/5 - (3q)/5)^3 is

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  8. Factorize the polynomial -r^(2)+p^(2)+q^(2)-2pq.

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  9. (a+1/a+2)^2=4 then find a^2+1/a^2 given that a^2+1/a^2 can not be nega...

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  10. The product of the polynomials (x^(2)-x+2) and (x-1) is .

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  11. Simplify the equation ((a)/(2)-(b)/(3))^(3)+((a)/(2)+(b)/(3))^(3).

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  12. Factorize : (x-y)^3+(y-z)^3+(z-x)^3

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  13. If x+y=3 and xy=2, then find x^4+y^4.

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  14. The HCF of the polynomials 10(a-1)(a-2)^(3),120(a-3)(a-2)^(3), and 135...

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  15. The LCM of the polynomials 12(x^4+x^3+x^2) and 18(x^4-x) is

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  16. The polynomials a^(2)-b+ab-a, on factorization, reduces to .

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  17. find value (8x^(3)+11x)div3x

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  18. The HCF of polynomials x^(3)-1 and x^(2)-1 is .

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  19. The factorized form of the polynomial y^2 + (x -1) y - x is

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  20. if a+b=3 and ab=2, then find a^3+b^3.

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