EC > GATE 2015 SET-2 > Quantitative Aptitude

Contributed by: Dr. Sarah Chen

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If a²+b²+c²=1, then ab+bc+ac lies in the interval

A

[1, 2/3]

B

[-1/2, 1]

C

[-1, 1/2]

D

[2, -4]

Check Answer

Explanation

Correct : b

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