SSC CGL 2012 Tier 1 1 July NZ Evening IV

Question 144

$$\frac{1+876542\times876544}{876543\times876543}$$ is equal to

Solution

$$\frac{1 + (a-1)(a+1)}{a^2}$$ = 1

and as $$\frac{1+876542\times876544}{876543\times876543}$$ is of the same form so it is equal to 1 

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