Respond to this Question
Similar Questions

campridge trigonometry
prove that ; tan20 . tan30 . tan40 = tan10 
PreCalculus
I need help on these problems they are from my study guide and i don't have a clue on how to do these 3 problems and if anyone can show the steps and somewhat explain the steps so i can do it myself next time. 1.) 
Math
prove: tan10+tan70+tan100=tan10.tan70.tan100 
math urgent
Prove : Tan20+4Tan20=√3 
Opt math
Prove :Tan20+4sin20=square root 3 
precalculus
Write each expression as sine, cosine, or tangent of an angle. Then find the exact value of the expression tan 50tan20/1+ tan 50 tan20 
trig
tan200(cot10tan10) 
trig
tan200(cot10tan10) 
math urgent
Tan20+4sin20=√3 
Math
Tan30