Which of the following is not an even function? O f(x) = cos?O f(x) = 1 x + x +O f(x) = 3 cosx-2 secxO None of these

Which of the following is not an even function? O f(x) = cos?O f(x)

1.	Which of the following is not an even function? O f(x) = cos?O f(x) = 1 x + x +O f(x) = 3 cosx-2 secxO None of these
Answer» f(X) = 1 x+ x+Step-by-step explanation:Even function:A function f(x) is said to be an even function WHENF(-x)=f(x).here,COS(-x)=cosxand3cos(-x)-2sec(-x)=3cos(x)-2sec(x)therefore,they are even function.andf(-x)= -1x-x =-(1 x+x)=-f(x)it is an ODD fuction

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Which of the following is not an even function? O f(x) = cos?O f(x) = 1 x + x +O f(x) = 3 cosx-2 secxO None of these​

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Which of the following is not an even function? O f(x) = cos?O f(x) = 1 x + x +O f(x) = 3 cosx-2 secxO None of these