Question

in an AP if S10=35andS9=28 find a10​

Answer 1

Answer:

Hey Mate!!

Given,

S₁₀ = 35

S₉ = 28

a₉ = S₁₀ - S₉

⇒a₉ = 35 - 28 = 7

Answer 2

$\huge \sf {\orange {\underline {\pink{\underline {A᭄ɴsᴡᴇʀ࿐ :−}}}}}$

$\red{ \boxed{\begin{gathered} \textbf {a10=Sn-Sn-1} \\ \implies \textbf{ S10-S10-1} \\\implies \textbf{ S10-Sn} \\ \implies \textbf{35-28} \\ \implies \textbf{a10=7}\end{gathered}}}$