Question

Write first four terms of the AP, when the first term a and the common difference d are
given as follows:
(v) a = – 1.25, d = – 0.25

Answer 1

Answer:-

(v)Given: a = – 1.25, d = – 0.25Let the series be a1, a2, a3, a4 …

a1 = a = – 1.25

a2 = a1 + d = – 1.25 – 0.25 = – 1.50

a3 = a2 + d = – 1.50 – 0.25 = – 1.75

a4 = a3 + d = – 1.75 – 0.25 = – 2.00

 the series will be 1.25, – 1.50, – 1.75, – 2.00 ……..

First four terms of this A.P. will be – 1.25, – 1.50, – 1.75 and – 2.00.---------------------------------------------------------------------------------------------------Hope this will help you...

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Answer 2

Answer:

AP= -1.25,-1.50,-1.75,-2.00

Step-by-step explanation:

a=-1.25,d=-0.25

a1=a=-1.25

a2=a+d

a2=-1.25+(-0.25)

a2=-1.25-0.25

a2=-1.50

a3=a+2d

a3=-1.25+2*-0.25

a3=-1.25-0.50

a3=-1.75

a4=a+3d

a4=-1.25+3*-0.25

a4=-1.25-0.75

a4=-2.00