Question

Nth term of (a-3b),(a-b),(a+b),.......

Answer 1

Answer:

answer for the given problem is given

Answer 2

Answer:

a=a+2b, d= a-b-a-2b

= -3b

Step-by-step explanation:

an=a+(n-1)d

an= a+2b+ (n-1) *(-3b)

an= a+ 2b- 3nb+ 3b

an= a + 5b-3nb

an= a+(-3n+5)b

hope this helps you...

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