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If x, 2y, 3z are in A.P where distinct n...

If x, 2y, 3z are in A.P where distinct numbers x,y,z are in GP then the common ratio of the G.P. is

A

3

B

`1/3`

C

1

D

none of these

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JBD PUBLICATION-MODEL PAPER (4)-EXERCISE
  1. The value of i^9+i^19 is:

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  2. The value of ("^nCr)/(^nC(r+1)) is equal to:

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  3. If x, 2y, 3z are in A.P where distinct numbers x,y,z are in GP then th...

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  4. The lines x+(k-1)y+1=0 and 2x+k^2y-1=0 are at right angles if

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  5. The latus rectum of the ellipse 16x^2+y^2=16 is:

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  6. underset(xrarrpi/2)lim (1-sinx)/(cosx) is equal to:

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  7. A die is rolled then the probability that a number 1 or 6 may appear i...

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  8. Prove the following: (sin5x + sin 3x)/(cos5x + cos3x)=tan4x

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  9. Find the principal solutions of cosx=-1/sqrt2.

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  10. Express (-2 - 1/3 i)^3 in the form of a + ib.

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  11. Prove that: sum(r=0)^(n) 3^( r) ""^(n)C(r) = 4^(n).

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  12. Using Binomial Theorem, evaluate each of the following:(99)^5.

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  13. Find the points on x-axis which are at a distance of sqrt29 units from...

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  14. Write the negation of the following statements p: all cats scratch.

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  15. Find the component statements of the following compound statements and...

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  16. Find the range of f(x)=3/(2-x^2).

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  17. Prove that:(1+sin2x-cos2x)/(1+sin2x+cos2x)=tanx

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  18. Find the general solution of the following equations: sin x + sin 3x +...

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  19. Find the general solution of the following equations: cos 3x + cosx- c...

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  20. Using principle of mathematical induction of prove that: 1+2+3+……….+n<...

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