Math, asked by xainlone856, 5 hours ago

find the 20th term of the AP 7,3,-1,-5...


answer me but step to step
dnt spame​

Answers

Answered by kumarsurya7964
2

Step-by-step explanation:

a = 7

d=-4

a20= a+(n-1)d

=7+(20-1)(-4)

=-69

Answered by manas190405
1

Step-by-step explanation:

Given :-

a ( first term ) = 7

d ( commen difference ) = -4

n = 20

To find :-

20th term

Solution :-

by using tn formula :

tn = a + (n - 1) × d

putting the above values...

t 20 = 7 + ( 20 - 1 ) × (-4)

= 7 + 19 × -4

= 7 + (-76)

= 69

Therefore, 20th term of givan A.P is 69

Used formula :-

tn = a + (n - 1) × d

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