Complex form of Fourier series

Complex form of Fourier series

Multiple Choice

What is  $e^{in\pi}$  ?

• 1

• -1

•  $\left(-1\right)^n$  

• 0

Multiple Choice

What is  $e^{-in\pi}$  ?

• 0

• 1

• -1

•  $\left(-1\right)^n$  

Multiple Choice

What is  $e^x+e^{-x}$  ?

• cos x

• cosh x

• sin x

• sinh x

Multiple Choice

What is  $e^x-e^{-x}$  ?

• sinh x

• cosh x

• sin x

• cos x

Multiple Choice

What is  $\int e_{ }^{ax}dx$  ?

•  $a\ e^{ax}$  

•  $e^{ax}$  

•  $\frac{e^{ax}}{a}$  

•  $\frac{e^{-ax}}{a}$