Question

Find number of terms of an AP 5,9,13.....185

Answer 1

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Ap...5, 9, 13,....185

an = a + (n - 1) × d

185 = 5 + (n - 1) × 4

180 = 4n - 4

180 + 4 = 4n

184/4 = n

46 = n...

hope!!...it helps uhh...❣️

Answer 2

Answer:

46

Step-by-step explanation:

Given:

l = 185

a = 5

d = 4

To find:

n = ?

Solution:

l = a + (n - 1)d

185 = 5 + (n - 1)4

185 = 5 + 4n -4

185 = 1 + 4n

185 - 1 = 4n

184 = 4n

184/4 = n

46 = n

Hope it helps you.

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