Question

1) The first four terms of an AP whose first term is -2 and the common difference is -2 are
(a) -2,0, 2, 4 (b) -2, 4, 8, 16 (c) -2,-4, -6, -8 (d) -2,-4, -6.-16​

Answer 1

Answer:

a) -2,0,2,4 is the answer

Answer 2

(c) -2, -4, -6, -8

Step-by-step explanation:

Given: First term of arithmetic progression is -2 and the common difference is -2.

Find: First 4 terms.

Solution:

An arithmetic progression is a sequence of numbers such that the difference of any two successive members is a constant.

Given that the difference is -2, we can find the AP starting from the given first term -2.

First term: -2

Second term: -2 + -2 = -4

Third term = -4 + -2 = -6

Fourth term = -6 + -2 = -8

So the AP is -2,-4, -6, -8. Option C is the answer.