Question

Fan + Medal for quick answer
Find all solutions in the interval [0, 2π). (3 points)

cos x = sin x

Answer 1

@Abhisar

Answer 2

Hint divide both sides by cos x

Answer 3

ok. sin x/cos x= 1
Where do I go from here?

Answer 4

Ok use your calculator to find the angle in the first quadrant
-- and use the fact that the tangent is positive in another quadrant

Answer 5

you can also find the angle using the following triangle

Answer 6

I think my answer is x= 3pi/4, 7pi/2?

Answer 7

It's multiple choice

Answer 8

No the lowest angle is pi/4