A) \[\frac{40}{401}\]
B) \[\frac{90}{401}\]
C) \[\frac{400}{401}\]
D) \[\frac{401}{400}\]
Correct Answer: A
Solution :
\[\frac{{{a}^{2}}-{{b}^{2}}}{a+b}=a-b=\left[ 1+\frac{20}{401} \right]-\left[ 1-\frac{20}{401} \right]=\frac{40}{401}\]You need to login to perform this action.
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