Question

find the number of terms in each of the following AP's
2, 4, 6......................... 998

Answer 1

a = 2

d = 2

an = 998

an = a + (n - 1)d

998 = 2 + (n - 1)2

998 - 2 = 2n - 2

998 = 2n

n = 998/2

n = 499

Hence :

The number of terms = n = 499

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Answer 2

Answer:

Step-by-step explanation:

A=2 ,d=2 & an=998

an=a+(n-1)d

998=2+(n-1)2

996=2n-2

998=2n

n=998/2=499

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