Question

Find the 11th term of AP 18, 15 x 1/2,13

Answer 1

Answer:

-87

Step-by-step explanation:

Given

18, 15/2, 13 are in ap

a=18, n=11, d=a2-al

-21/2

an = a + (n-1) d

= 18+ (10)-21/2

= 18+ (-105)

= -87

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