Question

-10,+10,-10,+10----------------is the sequence of an A.P? If so,find the common difference​

Answer 1

Answer:

- 10 + 10 - 10 + 10 is the sequence of an ap so find the common difference is equal to -10 -10 is equal to -20,+ 10 + 10 is equal to 20,-20 plus 20 is equal to zero

Answer 2

Answer:

Bro this isn't an A.P

Step-by-step explanation:

a2-a1 = 10-(-10) = 10+10 = 20

a3-a2 = -10-10 = -20

20 ≠ -20.

But this is a G.P and common ratio,r is given by

a2/a1 = 10/-10 = -1.

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