Mechanical Engg. Set-1 GATE (2015)

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Question 1 of 33

Directions: Carry One Mark Each.

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

Select Your Answer:

$\bigg[1, \frac{2}{3} \bigg]$

$\bigg[\frac{-1}{2} , 1\bigg]$

$\bigg[-1, \frac{1}{2} \bigg]$

[2, –4]

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