Question

Find all solutions to the equation.

cos x = sin x

Answer 1

@mathstudent55

Answer 2

divide by cos

--> tan x = 1

--> x = arctan(1)

use a unit circle to find what angle make tan x = 1

Answer 3

pi/4

Answer 4

yep

and 5pi/4

the general solution is obtained by just adding multiples of pi

--> x = pi/4 + k*pi

Answer 5

So it would be A?

Answer 6

@dumbcow

Answer 7

yeah