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In a sequence if { T }_{ n }=4{ n }^{ 2 }-1 and {T}_{n}=35, th

Question

In a sequence if $T_{n} = 4 n^{2} - 1$ and $T_{n} = 35$ , then the value of $n$ is

9

5

6

3

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Evelyn Discussed

In a sequence if

T_{n} = 4 n^{2} - 1

and

T_{n} = 35

, then the value of

n

8 mins ago

Discuss this question LIVE

8 mins ago

Text solutionVerified

Given that:

T_{n} = 4 n^{2} - 1, T_{n} = 35

To find:

Value of

n = ?

Solution:

T_{n} = 4 n^{2} - 1

or,

35 = 4 n^{2} - 1

or,

4 n^{2} = 35 + 1

or,

4 n^{2} = 36

or,

n^{2} = 9

or,

n = 3

∴

value of

n = 3

So, D is the correct option.

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Question Text	In a sequence if $T_{n} = 4 n^{2} - 1$ and $T_{n} = 35$ , then the value of $n$ is
Answer Type	Text solution:1
Upvotes	150