Same Reflection

Geometry Level 2

About the y y -axis, for which of the following reflection of f ( x ) f(x) is f ( x ) ? f(x)?

f ( x ) = x 3 f (x)=x^{3} f ( x ) = cos ⁡ x f (x)=\cos x f ( x ) = tan ⁡ x f (x)=\tan x None of the above

Prince Loomba by Prince Loomba , 21, India

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2 solutions

Kushal Bose
Jun 25, 2016

Function should be even

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Prince Loomba
Jun 25, 2016

Cos x is symmetrical about y axis

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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