Question

In AP d = -3, n = 18 an = - 5 then find the first term is _____

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correct answer only!!!!!​

Answer 1

Step-by-step explanation:

Answer

a

n

=a+(n−1)d

a

20

−a

18

=a+19d−a−17d

=2d

∴10=2d

⇒d=5

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Answer 2

Answer:

Our Chief Minister is a resident of the area between the river Sutlej and the river Ghaggar. By what other name is the area between these two rivers known?

Step-by-step explanation:

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