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For all positive integers k, if the grea...

For all positive integers k, if the greatest divisor of `25^k + 12k -1` is d , then ` 4sqrtd` =

A

36

B

8

C

20

D

24

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The correct Answer is:
D
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TS EAMCET PREVIOUS YEAR PAPERS-TS EAMCET ENGINEERING ENTRANCE EXAM QUESTION PAPER (2018)-MATHEMATICS
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  2. Let x ne 0 , |x| lt 1/2 and f(x) = 1 + 2x + 4 x^2 + 8x^3 + …… then ,...

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  3. For all positive integers k, if the greatest divisor of 25^k + 12k -1...

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  4. If A = , then (AA')' =

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  5. If then (Delta1)/(Delta2) =

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  6. If x = a , y = b, z = c is the solution of the system of simultaneous ...

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  7. The common roots of the equations z^3 + 2z^2 + 2z + 1 = 0 " and " z^...

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  8. The area (in sq units) of the triangle whose vertices are the points r...

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  9. If z + 1/z = 1 , then ( (z^(20) + 1) (z^(40) + 1) (z^(60) +1 ) )/(z...

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  10. If omega0 , omega1 , ………, omega( n - 1) are the nth roots of unity the...

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  11. If k in R , then roots of (x - 2) (x - 3) = k^2 are always

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  12. If x^2 - 3 a x + 14 = 0 " and " x^2 + 2ax - 16 = 0 have a common ro...

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  13. If alpha1 , alpha2 ,……….,alphan are the roots of x^n + px + q = 0 , ...

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  14. All the roots of the equation . x^5 + 15x^4 + 94x^3 + 305 x^2 + 507 ...

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  15. The number of ways in which four letters can be put in four addressed ...

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  16. If the integer represented by 100! has K consective zeroes at the end,...

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  17. If n is a positive integer and the coefficient of x^10 in the expans...

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  18. If x = (2.5)/(3.6) - (2.5.8 )/(3.6.9) (2/5) + (2.5.8.11)/(3.6.12) (2/5...

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  19. If F1 and F2 are irreducible factors of x^4 + x^2 + 1 with real coeff...

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  20. The number of all the possible integral values of n gt 2 such that sin...

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