Question

MEDAL!! Evaluate the expressions: A) arctan(-sqrt3)
B) Arctan(-sqrt3)

Answer 1

hey! I know the answer to A) -pi/3, but I don't know B)

Answer 2

well
guess the angle wich its tan =-sqrt3

Answer 3

will B) be different than A)? It is just Arctan instead of arctan. My teacher said there is a subtle difference

Answer 4

I don't think there is ANY difference between arctan and Arctan.....its like saying 'not' and 'Not' are different....

Answer 5

my teacher said there is a difference though. I just don't know if it effects the answer

Answer 6

the difference btw A and B is
that A could be in the first quirtor or the third
B could be in the second or the forth

Answer 7

so how does that effect the A) -pi/3 answer?

Answer 8

@ikram002p

Answer 9

and where did you learn that ? i never came across such thing.

Answer 10

I never actually learned it, but my teacher said there is a difference. http://openstudy.com/study#/updates/4f6b82ace4b014cf77c8494b

Answer 11

@hartnn do you not know?

Answer 12

such notations and not used everywhere, where i learn, arctan and Arctan are certainly the same.

Answer 13

it seems odd though that the teacher would include both of these equations back to back on a study guide. Surely, both answers aren't the same

Answer 14

mmm @washcaps there is no difference btw arc and Arc
but angels A ,b are different

Answer 15

so both answers are -pi/3?

Answer 16

one sec there is a diffrence btw arc and Arc sry i dint note that before
arc could be any angle but
Arc should be an angle with the range [-pi,pi]
@hartnn

Answer 17

oh ok, so how would that effect the answer

Answer 18

well arc = -pi/3 or = -pi/3 +2pi or = -pi/ 3 + 2kpi
but Arc would only be -pi /3

Answer 19

so I should write -pi/3 +2kpi for part A to clarify to the teacher the difference

Answer 20

@ikram002p

Answer 21

yess ur correct !

Answer 22

ahh thank you so much

Answer 23

nope ur wlc anytime !