Solve each inequality of x

Question

a) e^x < 8

b) ln(x)>-2

Answer 1

Hi Pius,

 

a) e^x < 8 (take natural log of both sides to leave x by itself)

ln(e^x) < ln8

x < 2.079

 

b) ln(x) > -2 (raise to the power of e toleave x by itself)

e^ln(x) > e^-2

x > 0.135