Question

if a *b means a × b + 2 and a# b means - a + b - (-3) then find this (i) 7* (-5)
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Answer 1

Answer:

n arithmetic means to be inserted.

So a is first term and b is (n+2)

th

term

Let d be the common difference.

t

n+2

=a+((n+2)−1)d=a+(n+1)d=b

⇒(n+1)d=b−a

⇒d=

n+1

b−a

Step-by-step explanation:

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