Question

The nth term of the sequence is (2n-3), find its 15th term.

Answer 1

Answer:

$\red { 15^{th}\: term \: in \: the \: sequence} \green {= 27}$

Step-by-step explanation:

$Given \: n^{th} \:term \:of \:the \: sequence\\ =2n-3$

$a_{n} = 2n - 3 \:---(1)$

$To \: get \: 15^{th} \:term \: , substitute \: n = 15\\in \: equation \: (1)$

$a_{15} = 2\times 15 - 3 \\= 30 - 3 \\= 27$

Therefore.,

$\red { 15^{th}\: term \: in \: the \: sequence} \green {= 27}$

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Answer 2

The nth term of the sequence is (2n-3). Find its 15th and 21st term.