How i solve the questioin of arithmetic progressions of exercise 5.1 in easiest way In class 10th it is very important for board exam Write first four terms of the A.P. when the first term a and the common difference are given as follows:(v) a = – 1.25, d = – 0.25

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# Write first four terms of the A.P. when the first term a and the common difference are given as follows:(v) a = – 1.25, d = – 0.25 Q.2(5)

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a= – 1.25,d= – 0.25Let us consider, the Arithmetic Progression series be

a_{1}, a_{2}, a_{3}, a_{4}, a_{5}…a_{1}=a= – 1.25a_{2}=a_{1}+d= – 1.25-0.25 = – 1.50a_{3}=a_{2}+d= – 1.50-0.25 = – 1.75a_{4}=a_{3}+d= – 1.75-0.25 = – 2.00Therefore, the A.P series will be 1.25, – 1.50, – 1.75, – 2.00 ……..

And first four terms of this A.P. will be – 1.25, – 1.50, – 1.75 and – 2.00.