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Which term of the AP 3,10, 17,... will b...

Which term of the AP 3,10, 17,... will be 84 more than its 13th term?

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  2. The sum of 50 terms of the series 3/(1^2)+5/(1^2+2^2)+7/(1^2+2^2+3^2)+...

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  3. Which term of the AP 3,10, 17,... will be 84 more than its 13th term?

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  4. The sum of the series a-(a+d)+(a+2d)-(a+3d)+... up to (2n+1) terms is:...

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  6. Find the number of multiples of 4 lies between 10 and 250.

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  10. If the first and the nth terms of a G.P are a and b , respectively, an...

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  14. For a ,x ,>0 prove tht at most one term of the G.P. sqrt(a-x),sqrt(x),...

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  17. Let alpha , beta be the roots of x^2-x+p=0 and gamma,delta be the root...

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