Write first four terms of the AP, when the first term $a$ and the common difference $d$ are given as follows:
$a = -1, d = \frac{1}{2}$

AcademicMathematicsNCERTClass 10

Given:

$a = -1, d= \frac{1}{2}$ 

To do:

We have to write the first four terms of the given arithmetic progression. 

Solution:

First term $a_1=a=-1$

Second term $a_2=a_1+d=-1+\frac{1}{2}=\frac{-1\times2+1}{2}=\frac{-1}{2}$

Third term $a_3=a_2+d=\frac{-1}{2}+\frac{1}{2}=0$

Fourth term $a_4=a_3+d=0+\frac{1}{2}=\frac{1}{2}$

Therefore, the first four terms of the given AP are $-1, \frac{-1}{2}, 0, \frac{1}{2}$.

raja
Updated on 10-Oct-2022 13:20:13

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