For the following Aps, write the first t...

For the following Aps, write the first term and the common difference:
(i) 3,1,`-1,-3`,….
(ii) `-5,-1,3,7`,……..
(iii) `1/3, 5/3, 9/3, 13/3`,………
(iv) `0.6, 1.7 , 2.8, 3.9`,………

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The correct Answer is:

(i) `a_(1)=3, d=-2`, (ii) `a_(1) =-5, d=4`, (iii) `a_(1) =1/3, d=4/3`, (iv) `a_(1) = 0.6`, d=1.1

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