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If `a ,b ,c ,d` are four consecutive terms of an increasing A.P., then the roots of the equation `(x-a)(x-c)+2(x-b)(x-d)=0` are a. non-real complex b. real and equal c. integers d. real and distinct

A

real and distinct

B

complex

C

equal roots

D

none

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The correct Answer is:
A
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