Question

the nth term of a sequence $u_{n} =3n - 6$

i) find the position of the number 45 in this sequence

Answer 1

Answer:

45 is the 17th term

Step-by-step explanation:

$u_{n} =3n-6$

$Given, u_{n} = 45\\\\So, 3n - 6 = 45$

⇒ $3n = 45+6$

⇒ $3n=51$

⇒ $n=\frac{51}{3}$

⇒ $n=17$

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