Math, asked by ankushghosh534, 7 months ago

If the common difference of an ap is 5 then find a13-a7? please solve by giving proper explanation​

Answers

Answered by arun7266
1

Here it is given that d = 5

a13 - a7

= a + 12d - (a + 6d)

= a + 12d - a - 6d( plus and minus a get cancel)

=12d - 6d

Substituting 'd' by 5

= (12× 5) - (6 × 5)

= 60 - 30

= 30

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