which of these in ap 2;3;5;7;8;10;15
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Answer:
♥️Hi there ♥️
Step-by-step explanation:
a) Let a and d be the first term and common difference .
2, 3 , 5 ,7 ,8 , 10 ,15...
a= 2
d= a2 - a
=3- 2= 1
a3- a2
= 5 -3 = 2
a4 - a3
7- 5= 2
a7- a6
= 15- 10 =5
No it not a arithmetic progression as common difference is not common in all.
b) 2, 5, 7, 10, 12, 15, .....
a = 2
d = 5-2= 3
7-5=3
Its form an A.P as d is common here.
c) -1, -3, -5, -7, .
a= -1
d = -3 +1 =-2
It's also form an A.P
Thank ☺️!!
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