How many of the following functions are even [sin x is odd and cosx is

1.	How many of the following functions are even [sin x is odd and cosx is even](a) f(x) = x2\|x\| (b) f(x) = ex+e−x(c) f(x) = log[1−x1+x] (d) log(√x2+1- x)(e) f(x) = log(x + √x2+1 (f) ax−a−x(g) f(x) = sinx+cosx (h) sinx×(ex−e−x) ___
Answer» How many of the following functions are even [sin x is odd and cosx is even] (a) f(x) = $x^{2} \| x \|$ (b) f(x) = $e^{x} + e^{- x}$ (c) f(x) = log[ $\frac{1 - x}{1 + x}$ ] (d) log( $\sqrt{x^{2} + 1}$ - x) (e) f(x) = log(x + $\sqrt{x^{2} + 1}$ (f) $a^{x} - a^{- x}$ (g) f(x) = $sin x + cos x$ (h) $sin x \times (e^{x} - e^{- x})$ ___

How many of the following functions are even [sin x is odd and cosx is even](a) f(x) = x2|x| (b) f(x) = ex+e−x(c) f(x) = log[1−x1+x] (d) log(√x2+1- x)(e) f(x) = log(x + √x2+1 (f) ax−a−x(g) f(x) = sinx+cosx (h) sinx×(ex−e−x) ___

Answer»

How many of the following functions are even [sin x is odd and cosx is even]

(a) f(x) = $x^{2} | x |$ (b) f(x) = $e^{x} + e^{- x}$

(e) f(x) = log(x + $\sqrt{x^{2} + 1}$ (f) $a^{x} - a^{- x}$

(g) f(x) = $sin x + cos x$ (h) $sin x \times (e^{x} - e^{- x})$

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