Question

Example 8 : Find the 11th term from the last term (towards the first term) of the
AP: 10, 7, 4, ....-62.
please guys answer this question briefly...
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Answer 1

Answer:

-32

Explanation:

Given:

a = 10

l = -62

d = a₂ - a₁ = 7 - 10 = -3

Now,

11 th term with last term = l - (n - 1)d

                                       = -62 - (11 - 1) ₓ (-3)

                                       = -62 - 10 ₓ (-3)

                                       = -62 + 30 = -32