Question

10. If the rth, (r + 1)th and (r + 2)thcoefficients of
(1 + x)raise to n, are in AP, then x is a root ol
(a) x2 - x (4r + 1) + 4p2 - 2 = 0
(b) x2 + x (4r + 1) + 4r2 -- 2 = 0
(C) x2 + x (4r + 1) + 4r2 + 2 = 0
(d) None of the above​

Answer 1

Answer:

I am not sure of the answer but I think the answer is

B

Answer 2

Answer:

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