Question

in a GP.,a=5 and r=1 then 10th term is​

Answer 1

$\bf{\underline{Question:-}}$

in a GP.,a=5 and r=1 then 10th term is

$\bf{\underline{Given:-}}$

• a = 5
• r = 1

$\bf{\underline{Find:-}}$

• ᵃ10 Or 10th term = ?

$\bf{\underline{Formula:-}}$

$\bf\huge{\mathcal{\red{\boxed{\underline{a_n=ar^{n-1}}}}}}$

$\bf{\underline{Solution:-}}$

$\sf → a_n = ar^{n-1}d$

$\sf → a_{10} = 5×1^{10-1}$

$\sf→ a_{10} = 5× 1^9$

$\sf → a_{10} = 5×9$

$\sf → a_{10} = 45$

$\bf{\underline{Hence:-}}$

• The 10th term of G.P is 45