Q : 2        Write first four terms of the AP, when the first term a and the common difference d are given  as follows:

                (iv) \small a=-1,d=\frac{1}{2}

Answers (1)

It is given that 
\small a=-1,d=\frac{1}{2}
Now,
a_1= a =-1
a_2= a_1 + d= -1 + \frac{1}{2} = -\frac{1}{2}
a_3= a_2 + d= -\frac{1}{2} + \frac{1}{2} = 0
a_4= a_3 + d= 0+\frac{1}{2}= \frac{1}{2}
Therefore, the first four terms of the given series are  -1,-\frac{1}{2},0, \frac{1}{2}

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