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(a+1/a+2)^2=4 then find a^2+1/a^2 given ...

`(a+1/a+2)^2=4` then find `a^2+1/a^2` given that `a^2+1/a^2` can not be negative

A

12

B

13

C

14

D

`-14`

Text Solution

Verified by Experts

The correct Answer is:
C
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PEARSON IIT JEE FOUNDATION-POLYNOMIALS, LCM AND HCF OF POLYNOMIALS -CONCEPT APPLICATION (LEVEL 1)
  1. Simplest form of ((2a)/5 +(3q)/5)^3- ((2a)/5 - (3q)/5)^3 is

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

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

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

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

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

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

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

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

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

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

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

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

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  15. The value of 51^3 + 49^3 is

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  16. If x+y+z=5 and xy+yz+zx=7, then x^(3)+y^(3)+z^(3)-3xyz = .

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  17. Factorization of the polynomial (x - y)^2 a^2 + 2(x- y) (x + y) ab + ...

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  18. The factors of the expression x^(2)-2x-63 are .

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  19. If ab+bc+ca=4 and abc=2, then find the value of (1)/(a)+(1)/(b)+(1)/(c...

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  20. Factorize x^(2)-y^(2)+z^(2)-a^(2)+2(xz+ay)

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