TCS
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Numerical Ability
Algebra
(1-1/3^2) (1-1/4^2) (1-1/5^4)----------(1-1/2015^2) = x/2015 then x value
Read Solution (Total 3)
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- (1+1/3)(1-1/3)(1+1/4)(1-1/4)......(1-1/2015)(1+1/2015)=x/2015
2/3*4/3*3/4*5/4.......................2014/2015*2016/2015=x/2015
2/3*2016/2015=x/2015
after solving
x=1344. - 8 years agoHelpfull: Yes(38) No(1)
- (1+1/3)(1-1/3)(1+1/4)(1-1/4)......(1-1/2015)(1+1/2015)=x/2015
2/3*4/3*3/4*5/4.......................2014/2015*2016/2015=x/2015
2/3*2016/2015=x/2015
x=1344. - 8 years agoHelpfull: Yes(1) No(0)
- Ans is 1344
hint:a^2-b^2=(a+b)*(a-b) - 8 years agoHelpfull: Yes(0) No(0)
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