well firstly you know that
so suppose that where A is just some value
then
giving
does that make sense ?
Find two solutions of the equation. Give your answers in degrees and radians.
the reference angle is 60 degrees and is located in quadrant 1 or 2.
Answer:
values in degrees: 60, 120
values in radians:
first of all, i don't know how to find the reference angle whenever it is csc, cot, sec. i put sin^-1( ); didn't come out right. second i dont understand how they got 60 degrees. i mean once you find the reference angle, which is 60, if it is lower than 180 you subtract it from 180, thus we get 120. but how do we get 60?
________________________________________
and my second question. another question says
i put in tan^-1(-1) and the reference angle is -45 degrees. the answer is positive 45 degrees. did i do something wrong?