Question

In an ap the nth team is 10 less than the 10th team . the common difference-2 . find the value of n​

Answer 1

Answer:

what is the question please make me understand

Answer 2

Answer:

n = 15

Step-by-step explanation:

General AP:

t(n) = a + (n-1)d

d= -2

t(n) = a + (n-1)(-2)

nth term t(n) = t(10) - 10

so, a + (n-1)(-2) = a + (9)(-2) -10

(n-1)(-2) = -18 -10

(n-1)(-2) = -28

n-1 = 14

n= 15