1
WB JEE 2016
MCQ (Single Correct Answer)
+1
-0.25
The cosine of the angle between any two diagonals of a cube is
A
$${1 \over 3}$$
B
$${1 \over 2}$$
C
$${2 \over 3}$$
D
$${1 \over {\sqrt 3 }}$$
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