Whats an odd function
Asked by maham237 @ in Mathematics viewed by 295 People
Which of the following is an odd function? f(x) = 3x^2 + x f(x) = 4x^3 + 7 f(x) = 5x^2 + 9 f(x) = 6x^3 + 2x
Answered by maham237 @
The odd function is : f(x) = 6x^3 + 2x
because for all x in R :
f(-x) = 6(-x)^3+2(-x)
= -6x^3-2x
= -(6x^3+2x)
f(-x) = - f(x)
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