Question

if a=10and d=2 then fifth term is​

Answer 1

Required Answer:

• a=10
• d=2

As we know that in a AP,

• $\boxed {\bf t_n=a+(n-1)d}$

Substitute the values :

$:\longrightarrow \sf t_5=10+(5-1)\times 2$

$:\longrightarrow \sf t_5=10+4\times2$

$:\longrightarrow \sf t_5=10+8$

$:\longrightarrow \underline {\boxed {\bf t_5=18}}$

$\therefore\sf 5th\:term\:is\:18.$