OpenStudy (anonymous):

Use the angle sum or difference identity to find the exact value of tan 75 degrees I can get this far: tan 75 = tan(45 + 30) tan(45+30) = (tan45 + tan 30)/(1 - tan45tan30) tan(45+30) = (1 + sqrt1/3)/(1-(1)(sqrt1/3)) and after that I'm stuck. I'm so close! Please help?

OpenStudy (anonymous):

what grade is this?

OpenStudy (anonymous):

I'm a junior in high school and I'm in precalc

OpenStudy (anonymous):

so logout of OpenStudy thin copy and paste in the address bar and hit openstudy!

OpenStudy (anonymous):

tell me if that helps

OpenStudy (anonymous):

I think I got it now. Thank you!