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Find the 15th term of the AP -40, -15, 10, 35,.......

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Find the $15$ th term of the AP $- 40, - 15, 10, 35, ......$ .

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Scarlett Discussed

Find the

15

th term of the AP

- 40, - 15, 10, 35, ......

12 mins ago

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12 mins ago

Text solutionVerified

The

15

th term of the AP

- 40, - 15, 10, 35, ...

Given: AP is

- 40, - 15, 10, 35, ....

Here, first term

= a = - 40

Common difference

= d = - 15 - (- 40) = - 15 + 40 = 25

n^{t h}

term is given by,

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

n = 15

a_{15} = - 40 + (15 - 1) 25

= 310

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