Question

if sn=4n+5,find the third term

Answer 1

given★

• $s_{n} = 4n + 5$

find★

• third term or
• $s_{3} = {?}^{}$

solution★

• value of n

• $s_{n} = 4n + 5$

• when n=3

• $s_{3} = 4(3) + 5$

• $s_{3} = 12 + 5$

• $s_{3} = 17$

finally we get

• third term =17

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i hope it hepls you