if an ap is d=-2 n=5 and tn =0 , find a
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Answered by
1
a + (n-1) d = 0
a = -(n-1) d
= -4 x -2 = 8
a = -(n-1) d
= -4 x -2 = 8
Answered by
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HI !
Common difference = d = -2
No: of terms = n = 5
Last term = tn = 0
First term = a = ?
tn = a + ( n - 1)d
0 = a + (5 - 1)-2
0 = a - 8
a = 8
First term = a = 8
Common difference = d = -2
No: of terms = n = 5
Last term = tn = 0
First term = a = ?
tn = a + ( n - 1)d
0 = a + (5 - 1)-2
0 = a - 8
a = 8
First term = a = 8
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