Question

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Answer 1

Answer:

a

Step-by-step explanation:

because the common difference in option a is not same...

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Answer 2

2.

a. 2,2,2,5,7....

No it is not an A.P. Because In a A.P. the difference between each term is equal.

b.-5,-2,1,...

d = -2-(-5) = -2+5 = 3

= 1-(-2) = 1+2 = 3

Since the common difference is same here, Yes ,this is an A.P

c. √2,√8,√18,...

It can also be written as,

√2, 2√2, 3√2

Now, common difference = 3√2-2√2 = √2

again, 2√2-√2 = √2

Since here common difference is same,

Yes it is in A.P

d.1,2,3,4

Yes it is in A.P. cause here too, the common difference is same

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