In an AP, if d= -2, n= 5 and Tn= 0, then find the value of a.
(Class 10 Maths Sample Question Paper)
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Answered by
117
SOLUTION:
Given :
d = - 2 , n = 5 and Tn = 0
We know that , Tn = a + ( n - 1 ) d
0 = a + (n - 1) d
[ Tn = 0]
0 = a + ( 5 - 1 ) (-2 )
0 = a + 4 × - 2
0 = a -8
0 +8 = a
a = 8
Hence, the value of a is 8.
HOPE THIS WILL HELP YOU...
Given :
d = - 2 , n = 5 and Tn = 0
We know that , Tn = a + ( n - 1 ) d
0 = a + (n - 1) d
[ Tn = 0]
0 = a + ( 5 - 1 ) (-2 )
0 = a + 4 × - 2
0 = a -8
0 +8 = a
a = 8
Hence, the value of a is 8.
HOPE THIS WILL HELP YOU...
Answered by
32
hello friend,
the value of a will be 8.
hope it helps you:-)
the value of a will be 8.
hope it helps you:-)
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