Originally posted by geniuswtf??? ... and I felt bad because I messed up my physics exam on thursday (that is, really messed it up as in nearly every question wrong...). Did you get the right answer in the exam, btw?
tricky little trig problem that i found today. that is, it was in my exam...woo...
show that tan(3x) = (3*tan(x)-tan(x)^3)/(1-3*(tan(x)^2)
Angie 🙄😲🙄😲🙄😲🙄😲
PS: I hate physics... and I have a maths exam on tuesday, so I'll just ask you if I have questions beforehand 😀
1 edit
Originally posted by geniusUse the formula for tan(A+B) ( (tanA + tanB)/(1-tanAtanB) or something) and turn the handle - standard Higher/A-Level question. 😴
tricky little trig problem that i found today. that is, it was in my exam...woo...
show that tan(3x) = (3*tan(x)-tan(x)^3)/(1-3*(tan(x)^2)