JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

1 of 1

Analyzing +4 | -1

Sum of

n

terms to the series

5+7+13+31+85+\ldots \ldots

. , is

View answer and explanation

Correct option: A

4 n+\frac{1}{2}\left(3^n-1\right)

Option A (

4 n+\frac{1}{2}\left(3^n-1\right)

) is correct because it represents the sum of the given series, derived by finding the nth term and summing the series.

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A=\{1,2,3\}, B=\{3,4\}, C=\{4,5,6\}

{A} \cup({B} \cap {C})

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{x^2},{b^2},{y^2}

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\frac{3}{4}