find the nth term...
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AbhijithPrakash:
What is the nth term??
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Answered by
55
hey Mate ....
☆SOLUTION -
8 , 5 , 2 , -1 , -4 , -7
a1 = 8 , a2 = 5
d = a2 - a1
= 5 - 8
= -3
a = 8 , d = -3 , An = -7
By Using the formula -
An = a + ( n -1 ) d
-7 = 8 + (n -1 ) ( -3)
-7 -8 = ( n -1 ) (-3)
-15 = ( n -1 ) ( -3)
-15 / -3 = n -1
5 = n - 1
5 +1 = n
6 = n
☆ n = 6 ☆
▪ So , the number of terms ( nth ) term is 6 ▪
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16
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