The 1st and 2nd terms of AP are (a-b)and (b-a) respectively then find d
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Step-by-step explanation:
1st term=a= (a-b)
2nd term =a+d=(b-a)
subtracting 1st term from the 2nd term then
d=b-a-a+b=2b-2a= 2(b-a)
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