A) 0
B) \[-\frac{1}{2}\]
C) 1
D) \[\frac{2}{5}\]
Correct Answer: A
Solution :
(a) : First term \[\left( -\frac{1}{2}+\frac{1}{3}+\frac{1}{6} \right)\] \[=\frac{-3+1+2}{6}=0\] Now, zero multiplied by any number is zero. This is called mathematical ingenuity. Otherwise if you evaluate \[\left( 36\frac{7}{15}-91\frac{8}{19}+1011\frac{231}{611} \right)\], it is very tedious.You need to login to perform this action.
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