Question

Which of the following sequences are A.P. ? If they are A.P. find the common difference .
(1) 2, 4, 6, 8, . . .
(2) 2,2/5 , 3,7/3, . . .
(3) -10, -6, -2, 2, . . .
(4) 0.3, 0.33, .0333, . . .
(5) 0, -4, -8, -12, . . .
(6) -1/5,-1/5,-1/5, . . .
(7) 3, 3+√2,3+2√2,3+3√2 , . . .
(8) 127, 132, 137, . . .

Answer 1

the series present in A.P are 1,3,5,6,8
common difference :-
1. here it is 2
3.here it is 4
5. here it is -4
6. here it is 0
8. here it is 5
hope it is helpful plz mark as brainliest

Answer 2

Hello dear,

● Answers -
(1) AP
Common difference = 4-2 = 6-4 = 8-6 = 2

(2) Not AP

(3) AP
Common difference = -6-(-10) = -2-(-6) = 2-(-2) = 4

(4) Not AP

(5) AP
Common difference = -4-0 = -8-(-4) = -12-(-8) = -4

(6) AP
Common difference = -1/5-(-1/5) = -1/5-(-1/5) = 0

(7) AP
Common difference = 3+√2-3 = 3+2√2-3+√2 = √2

(8) AP
Common difference = 132-127 = 137-132 = 142-137 = 5

Hope this helps you..