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Which of the following functions have a y-axis symmetry? (Picture Included!)

A, Y= x^2 , y= |X|, y = cos(x)

B. y= sin x, y= cos x, y=x, y=x^3

C. y=x, y= x^3, y= 1/x, y = cos x

D. y = 1/x, y= sinx, y = x^2

Which of the following functions have a y-axis symmetry? (Picture Included!) A, Y-example-1
User Yogiben
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C because y = x and y = 1/x
User Fejta
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