Question

✔1.Find n=? term of the following ?✔✔

a= -18.9, d= 2.5, an=3.6, n =?✔

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Answer 1

Answer :

10

Step-by-step explanation :

Given that ;

a = - 18.9

d = 2.5

an = 3.6

n =?

So, Here we will use formula, and put the values of the above ;

an = a + ( n - 1 ) d

⇒ 3.6 = - 18.9 + ( n - 1 ) * 2.5

⇒ ( n - 1 ) * 2.5 = 3.6 + 18.9

⇒ ( n - 1 ) * 2.5 = 22.5

⇒ ( n - 1 ) = 22.5 / 2.5

⇒ ( n - 1 ) = 9

⇒ n = 9 + 1

⇒ n = 10

Hence, the value of n is 10.

Answer 2

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QUESTION :)



✔1.Find n=? term of the following ?✔✔

a= -18.9, d= 2.5, an=3.6, n =?✔



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ANSWERS:) 10



=>✔ GIVE THAT<=✔



A=18.9


D=2.5


AN=3.6


H=?


AN=A+(N+1) DX


=(N+1)*2.5=36+18.9



= (N+1) .2.5 =22.5



=(N+1) =》9

=N=9+1



H=》10 ANSWERS


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