Question

a(1)=−13
a(n)=a(n−1)+4
​
Find the 2nd term in the sequence

Answer 1

Answer:

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Answer 2

$Given \: a(1) = - 13 \: --(1)$

$and \: a(n) = a_{(n-1)} + 4 \: --(2)$

/* Put n = 2 in equation (2), we get */

$\red{ Second \: term \: a_{2} } \\= a_{ (2-1)} + 4 \\= a_{1} + 4\\= - 13 + 4 \: \blue { [ From \: (1) ]}$

$= -9$

Therefore.,

$\red{ Second \: term \: a_{2} } \green { = -9}$

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