Math, asked by bibins13i13iz, 8 months ago

If the common difference of an A.P is -2, then a₃₀ - a₁₂ is equal to​

Answers

Answered by jjaajjajaja36
0

Answer:

· एक समांतर श्रेढ़ी (AP) संख्याओं की एक ऐसी सूची होती है ... 2: किसी AP में, यदि a = –7.2, d = 3.6 और aₙ = 7.2 है, तो n का मान है।

Answered by tarracharan
1

{\bold{\blue{common \: difference (d) = -2}}}

{\boxed{\red{a_{n} = a+(n-1)d}}}

{\bold{\pink{a_{30}-a_{12}}}}

= {\bold{\pink{a+(30-1)(-2)-a-(12-1)(-2)}}}

= {\bold{\pink{-58+22}}} = {\boxed{\pink{-36}}}

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