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JEE MATHEMATICS MCQ: PERMUTATIONS

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Analyzing +4 | -1

If

\frac{2}{9 !}+\frac{2}{3 ! 7 !}+\frac{1}{5 ! 5 !}=\frac{2^a}{b !}

, where

a, b \in N

, then the ordered pair

(a, b)

is

View answer and explanation

Correct option: A

(9,10)

Option A ((9,10)) is the correct answer because the given expression can be simplified and expressed in the form

\frac{2^a}{b !}

where a=9 and b=10.

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