Question

find the nth term when a=4.5 and d=0.5​

Answer 1

Answer:

4+0.5n

Step-by-step explanation:

Answer 2

$\large{ \bold{ \red{ \underline{ \underline{Question...}}}}}$

$\large{ \sf{find \: nth \: term \: when \: a = 4.5 \: and \: d = 0.5}}$

$\large{ \bold{ \green{ \underline{ \underline{Answer...}}}}}$

$\large{ \sf{ \red{a}n = \frac{8 + n}{2} }}$

$\large{ \bold{ \red{ \underline{ \underline{Solution...}}}}}$

$\large{ \sf{ \to \: u \: must \: know..}} \\ \boxed{ \green{ \large{ \sf{ \red{a}n = \red{a} + (n - 1)d}}}}$

$\large{ \sf{ \to \: given \: = > \red{a} = 4.5}} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \large{ \sf{ \: d = 0.5}} \\ \\ \large{ \sf{ \to \: to \: find \: \red{a}n }} \\ \\ \large{ \sf{by \: using \: the \: formula...}} \\ \\ \large{ \sf{ \to \red{a}n = 4.5 + (n - 1)0.5}} \\ \\ \large{ \sf{ \to \red{a}n = 4.5 + 0.5n - 0.5}} \\ \\ \large{ \sf{ \to \red{a}n = 4 + 0.5n}} \\ \\ \large{ \sf{ \to \: \red{a}n = 4 + \frac{n}{2} }} \\ \\ \large{ \sf{ \boxed{ \to \red{a}n = \frac{8 + n}{2} }}}$

$\bold{ \large{ \pink{required \: answer = \frac{8 + n}{2} }}}$