Question

what is the formula of sum of ap

Answer 1

Hello!

Sum of nᵗʰ term :-

• $\boxed{\sf S_{n} = \dfrac{\sf n}{\sf 2}(\sf a + a_{n})}$

• $\boxed{\sf S_{n} = \dfrac{\sf n}{\sf 2}(\sf 2a + (n - 1)d)}$

Cheers!

Answer 2

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{QUESTION}}$

WHAT IS FORMULA OF AP ?

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$\Large\fbox{\color{purple}{ SOLUTION }}$

★ FORMULAS OF AP ★

$\Large\mathfrak\pink{ \implies \: a_{n} = a \: + (n - 1)d }$

$\Large\mathfrak\orange{\implies \: s _{n} = \frac{n}{2}(2a + (n - 1)d) }$

$\Large\mathfrakl\red{\implies \: s _{n}=\frac{n}{2}(a + l)}$

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$\bf\Large\red{ THANKS \: FOR \: YOUR}$

$\bf\Large\red{ QUESTION \: HOPE \: IT }$

$\bf\Large\red{ HELPS }$

$\Large\mathcal\green{FOLLOW \: ME}$

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