Difference 4086

Find the difference AP if a1 = -1.5 and a2 + a3 = 2.7.

Correct answer:

d =  1.9

Step-by-step explanation:

a1=1.5 a2+a3=2.7 a1+d+a1+2d = 2.7 d=(2.72 a1)/3=(2.72 (1.5))/3=1.9

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