th 1 63046 ally Use the table f feature of a graphing utilit

th 1 6.3.046 ally. Use the table f feature of a graphing utility to check your answers 3 sec x + 3 tan x 3

Solution

3secx +3tanx =3

secx +tanx =1

secx =1-tanx

squaring on both sides

sec²x =1²+tan²x-2tanx

sec²x =1+tan²x-2tanx

sec²x - tan²x =1-2tanx

1 =1-2tanx

-2tanx=0

x=0,x=pi

x=0 satisfies given equation

so x=0 is the only solution