
SOLUTION: Tan 195 degrees - Algebra Homework Help
195 = 150 + 45 and 195 = 240 - 45 So we will be able to get an answer in two ways: tan(195) tan(150+45) Using the formula we get: We should be able to find these tan's easily since they …
How do you use a half-angle formula to simplify tan 195? - Socratic
2015年6月15日 · tan(195^o) = tan(390^o/2) The identity you need is: tan(x/2) = pmsqrt((1-cosx)/(1+cosx)) + if quadrant I or III - if quadrant II or IV It's derived from: sin(x/2) = pmsqrt((1 …
How do you find the exact values of Tan (-195) using the ... - Socratic
2015年9月19日 · Fin tan (-195) Ans: sqrt3 - 2 Call tan (-195) = t tan (- 390) = 2t = tan (-30 - 360) = tan (-30) = - tan (30) = - 1/sqrt3 Apply trig identity: tan 2t = (2t)/(1 - t^2 ...
How would you use the half-angle formula to find the exact
2015年5月23日 · Use the trig identity: tan 2a = (2tan a)/(1 - tan^2 a) tan 2(195) = tan 390 = tan (30 + 360) = tan 30 = sqrt3/3 Call t = tan 195. sqrt3/3(1 - t^2) = 2t --> (1 - t^2) = 2sqrt3t -> t^2 + …
SOLUTION: Find the exact value of the expression tan 195 degrees
tan 195 degrees Answer by arallie(162) (Show Source): You can put this solution on YOUR website! 0. ...
How do you use the angle sum or difference identity to find
How do you use the sum and difference identities to find the exact value of tan 105 degrees? How do you apply the sum and difference formula to solve trigonometric equations? How do you …
Half-Angle Identities - Trigonometry - Socratic
How would you use the half-angle formula to find the exact values of #tan 195#degrees? How do you use the half angle formula to simplify #sin^2(pi/8)#? How do you use the half angle identity …
SOLUTION: Use an Addition or Subtraction Formula to find the …
tan(-11pi/12) 2. sin(-11pi/12) Algebra -> Trigonometry-basics -> SOLUTION: Use an Addition or Subtraction Formula to find the exact value of the expression, as demonstrated in Example 1.
How do you simplify #Tan (-195)#? - Socratic
2015年5月23日 · On the trig unit circle, tan (-195) = tan (180 - 15) = - tan 15 . Answer link. Related questions
Without using calculator or table of multiplication, show that tan …
Without using calculator or table of multiplication, show that #tan 195° = (sqrt3-1)/(sqrt3+1)#.?