Question

The 6th term and 7th term of an ap are 19 and 41 respectively . Find the 40th term

Answer 1

7th term => a + 6d

41 = a + 6d

41 - 6d = a ---1equation

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6th term = a + 5d

19 = 41 - 6d + 5d

6d - 5d = 41 - 19

d = 22

Putting the value of d in 1equation

a = 41 - 6(22)

a = 41 - 132

a = -91

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40th term = a + 39d

=> -91 + 39(22)

=> -91 + 858

=> 767



I hope this will help you

(-:

Answer 2

Hey! Here is ur answer...

We have used the formula :-

nth term of an AP = a + (n - 1) d

Hope it will help u... Plz mark it as brainliest... :)