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NDA 2021
Exam
NDA
Year
2021
Subject
Mathematics
Chapter
Functions

NDA 2021 · Mathematics · Functions

What is the domain of the function f(x)=3^x ?

What is the domain of the function f(x)=3xf(x)=3^x ?

Options

  1. A(−∞,∞)(-\infty, \infty)
  2. B(0,∞)(0, \infty)
  3. C[0,∞)[0, \infty)
  4. D(−∞,∞)−{0}(-\infty, \infty)-\{0\}

Correct answer

A. (−∞,∞)(-\infty, \infty)

Step-by-step solution

y=f(x)=3xDomain =(−∞,∞)\begin{aligned} & y=f(x)=3^x \\ & \text{Domain }=(-\infty, \infty)\end{aligned}
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