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If a,b,c,d are four unequal positive numbers which are in A.P. then

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If a,b,c,d are four unequal positive numbers which are in A.P. then

(a)  1/a +1/d = 1/c + 1/b

(b)  1/a +1/d < 1/b + 1/c

(c)  1/a + 1/c > 1/b + 1/d

(d)  1/b + 1/c > 4/(a + d)

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1 Answer

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Best answer

Correct option (d) 1/b + 1/c > 4/(a + d)

Explanation:

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