Hi my name is Patty and I am taking a precalculus course and need help with the following. Question If sin0 = 7/8 and 0 is in quadrant 2, find the other
five trigonometric I'm also not sure
how to show (0) with a line through it so I have just used What is radical form?
and
and
and
and
does any of this make sense and if so is it right? Thank you 

Hi Patty, You missed one important point in the question, the fact that the angle is in the second quadrant. (I am going to use t for theta, rather than O. I worry about confusing O with 0.) I agree with your solution to the fact that
but, since t is in the second quadrant, cos t is negative. Thus
This is cos t in radical form, It involves rational numbers and roots, but no decimals. Since the tangent is the sine over the cosine
(don't use the decimal approximation, leave the answer in this form.) For the remainder of the problem make sure that you check the signs and remove the decimal approximations. Penny 

