JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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Application +4 | -1

a_1, a_2, \ldots, a_{10}

are in A.P. and

\frac{1}{h_1}, \frac{1}{h_2}, \ldots, \frac{1}{h_{10}}

are in A.P. and

a_1=h_1=2

and

a_{10}=h_{10}=3

, then

a_4 h_7=

View answer and explanation

Correct option: B

Option B (6) is correct because it is the product of a_4 and h_7, calculated using the properties of arithmetic progressions for a_n and 1/h_n.

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