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G.M of 8 and 18 is:...

G.M of 8 and 18 is:

A

13

B

26

C

10

D

12

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JBD PUBLICATION-MODEL PAPER (8)-EXERICSE
  1. The polar form of the complex number (i^(25))^3 is

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  2. ^nP5=20. ^nP3, then n is equal to:

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  3. G.M of 8 and 18 is:

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  4. The value of lambda for which the lines 3x+4y=5, 5x+4y=4 and lambdax+4...

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  5. The equation 16x^2+y^2+8xy-74x-78y+212=0 represents:

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  6. If y=(sinx)/(1+cosx), then value of (dy)/(dx) is:

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  7. In a single toss of three coins, the probability of getting head and t...

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  8. Find the angle between the minute hand and the hour hand of a clock wh...

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  9. Prove that: tan3A. tan2A. tanA=tan3A-tan2A-tanA

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  10. Find the real numbers x and v if (x -iy) (3 + 5i) is the conjugate of ...

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  11. Prove that the coefficient of x^(n) in (1+x)^(2n) is twice the coeffi...

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  12. Write the middle term in the expansion of (2x^2-1/x)^10.

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  13. A point R with x-co-ordinate 4 lies on the line segment joining the po...

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  14. Find out which of the following sentences are statements and which are...

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  15. Find out which of the following sentences are statements and which are...

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  16. Rewrite the following statement if then in five different ways conveyi...

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  17. There are 210 members in a club. 100 of them drink tea and 65 drink te...

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  18. If y=f(x)=(2x+3)/(5x-2), prove that f(y)=x.

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  19. If sin theta= n sin(theta+2 alpha), show that : tan(theta+ alpha)=(1+n...

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  20. Prove by mathematical induction that 1+3+3^2+…………+3^(n-1)=(3^n -1)/2

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