Trigonometry Examples

$f (x) = 90 e^{- 0.4 \cdot 1} + 10$

Step 1

Multiply $- 0.4$ by $1$ .

$f (x) = 90 e^{- 0.4} + 10$

Step 2

Rewrite the expression using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$f (x) = 90 (\frac{1}{e^{0.4}}) + 10$

Step 3

Combine $90$ and $\frac{1}{e^{0.4}}$ .

$f (x) = \frac{90}{e^{0.4}} + 10$