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How many terms of GP 3,3^2,3^3,..... are...

How many terms of GP `3,3^2,3^3,`..... are needed to give the sum 120?

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MAXIMUM PUBLICATION-MODEL PAPER 18-EXAMPLE
  1. Consider a point A (3,2,-1) in space.If B (1,2,3) is another point in ...

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  2. Write the contrapositive of the statement.p: If a triangle is equilate...

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  3. Verify by method of contradiction: 'sqrt3 is irrational.

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  4. If A={a,b} write AtimesAtimesA.

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  5. If R={(x,x^3):x is a prime number less than 10}. Write R in roster for...

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  6. Find the domain and range of the real function f(x)=2+sqrt(x-1)

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  7. The minute hand of a watch is 3cm long. How far does its tip move in 4...

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  8. Solve sin2x-sin4x+sin6x=0

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  9. Find the sum of all 3 digit numbers which are multiple of 5.

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  10. How many terms of GP 3,3^2,3^3,..... are needed to give the sum 120?

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  11. Find the sum of the first n terms of the series whose nth term is n(n+...

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  12. Expand using binomial theorem, (x/3+1/x)^5.

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  13. Find (a+b)^4-(a-b)^4.

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  14. evaluate (sqrt3+sqrt2)^4-(sqrt3-sqrt2)^4

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  15. Find the derivative of y=1/x from the first principle.

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  16. Differentiate f(x)=cosx/(1+sinx) with respect to x.

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  17. Calculate the mean deviation about median for the following data: .

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  18. Consider a bag containing 3 red balls and 2 black balls which are iden...

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  19. Consider a bag containing 3 red balls and 2 black balls which are iden...

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  20. Consider a bag containing 3 red balls and 2 black balls which are iden...

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