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Question
Write the arithmetic progressions write the first term a and common difference d is as follows:
a = -1.5, d = -0.5
Solution
a = -1.5, d = -0.5
Now as a = -1.5
A.P would be represented by `a, a_1,a_2, a_3,a_4.......`
So,
`a_1 = a+ d`
`a_1= -1.5 + (-0.5)`
`a_1 = -2`
Similarly
`a_2 = a_1 + d`
`a_2 = -2 + (-0.5)`
`a_2 = -2.5`
Also
`a_3 = a _2 + d`
`a_3 = -2.5 + (-0.5)`
`a_3 = -3`
Further
`a_4 = a_3 + d`
`a_4 = -3 + (-0.5)`
`a_4 = -3.5`
Therefore A.P with a= 4 and d = -3 is -1.5, -2, -2.5, -3, -3.5....
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