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प्रश्न
Find 11th term of the A.P. 10.0, 10.5, 11.0, 11.5, ...
उत्तर
11th term of the A.P. 10.0, 10.5, 11.0, 11.5, ...
Here
First term (a) = 10.0
Common difference of the A.P. (d) = 10.5 - 10.0
= 0.5
Now, as we know,
`a_n = a + (n - 1)d`
So for 11 th term
`a_11 = a + (11 - 1)d`
`= 10.0 + (10)(0.5)`
= 10.0 - 5.0
= 15.0
Therefore the 11th term of the given A.P is `a_11 = 15.0`
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