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Q. A function is said to be even if f(x) = f ( -x ) . Which of the following is not an even function?
A: y = |x|
B: y = sec x
C: y = log (x^2)
D: y = x^2 + sin x
E: y = 3x^4 - 2x^2 +17
I marked B but the correct answer is D
A: y = |x|
B: y = sec x
C: y = log (x^2)
D: y = x^2 + sin x
E: y = 3x^4 - 2x^2 +17
I marked B but the correct answer is D