[Official] Quant Thread for 2015!


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coefficient of x^4 in (1-x+x^2)^5

A. 35

B. 45.

C. 60

D. 75

E. 50

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Unit place of 1^1+2^2+3^3+.....+100^ 100.

No oa.

sum of infinite series 1+4/5+9/5^2+16/5^3...

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Please provide solution also.  

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I need discount for Smart CAT Cracker-2015. Anyone enrolled last year for the same course?

find the +ve integral solution where abc=45 Post

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