Solve algebraically

1. Jan 21, 2009

Webs993

e^x - 15e^-x = 2

2. Jan 21, 2009

praharmitra

put e^x = y. And then solve for y

3. Jan 21, 2009

Mentallic

Remember the rule: $$a.b^{-c}=\frac{a}{b^c}$$

You will have a quadratic in $$e^x$$