Question
\begin{tabular}{|c|c|}\hline\( g(x)=\frac{1}{5 x^{3}} \) & \( h(x)=x^{2}|x|+4 \) \\ Even & Even \\ Odd & Odd \\ Neither & Neither \\ \hline\end{tabular}
Ask by May Dunn. in the United States
Feb 03,2025
Real Tutor Solution
Tutor-Verified Answer
Answer
\( g(x) \) is Odd and \( h(x) \) is Even.
Solution
Function by following steps:
- step0: Determine if even, odd or neither:
\(h\left(x\right)=x^{2}\left|x\right|+4\)
- step1: Use substitution:
\(h\left(-x\right)=\left(-x\right)^{2}\left|-x\right|+4\)
- step2: Simplify:
\(h\left(-x\right)=x^{2}\left|x\right|+4\)
- step3: Use substitution:
\(h\left(-x\right)=h\left(x\right)\)
- step4: The function is an even function:
\(\textrm{Even}\)
Determine whether the function \( g(x)=\frac{1}{5 x^{3}} \) is even or odd
Function by following steps:
- step0: Determine if even, odd or neither:
\(g\left(x\right)=\frac{1}{5x^{3}}\)
- step1: Use substitution:
\(g\left(-x\right)=\frac{1}{5\left(-x\right)^{3}}\)
- step2: Simplify:
\(g\left(-x\right)=-\frac{1}{5x^{3}}\)
- step3: Use substitution:
\(g\left(-x\right)=-g\left(x\right)\)
- step4: The function is an odd function:
\(\textrm{Odd}\)
Let's analyze the functions \( g(x) \) and \( h(x) \) to determine their properties regarding being even, odd, or neither.
1. **Function \( g(x) = \frac{1}{5 x^{3}} \)**:
- After analysis, we find that \( g(x) \) is **Odd**. This means that \( g(-x) = -g(x) \) for all \( x \) in the domain of \( g \).
2. **Function \( h(x) = x^{2}|x| + 4 \)**:
- After analysis, we find that \( h(x) \) is **Even**. This means that \( h(-x) = h(x) \) for all \( x \) in the domain of \( h \).
### Summary:
- \( g(x) = \frac{1}{5 x^{3}} \) is **Odd**.
- \( h(x) = x^{2}|x| + 4 \) is **Even**.
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The Deep Dive
To determine if the functions \( g(x) \) and \( h(x) \) are even, odd, or neither, let's analyze each one. For \( g(x) = \frac{1}{5 x^{3}} \), plugging in \(-x\) gives \( g(-x) = \frac{1}{5 (-x)^{3}} = -\frac{1}{5 x^{3}} = -g(x) \). Hence, \( g(x) \) is an odd function. For \( h(x) = x^{2}|x| + 4 \), we substitute \(-x\) to get \( h(-x) = (-x)^{2}|-x| + 4 = x^{2}(-x) + 4 = x^{2}|-x| + 4 = x^{2}|x| + 4 = h(x) \). Thus, \( h(x) \) is an even function. So, \( g(x) \) is odd and \( h(x) \) is even!