Question

find the exact value of the expression.
tan 225 degrees

Answer 1

225 is a third degree angle, so tan is positive there;

tan (225) = tan(45)


In 3rd quadrant, you subtract 180 from the given angle

Answer 2

do you know what tan(45) = ?

Answer 3

its 1

Answer 4

yes

Answer 5

so you are telling me that 1 is the answer? if so that is what i got before I posted this question and 1 is not the right answer..

Answer 6

1 is the answer.

Answer 7

tan(225) = tan(45) = 1.

Answer 8

once again I mistype the question without fixing it. the question is 255. I calculated it for 225 and it was 1 you are correct. but 255 degrees is the answer. sorry

Answer 9

tan(255) = tan(75)

Answer 10

so take tan of 15 and 60 and add them together right?

Answer 11

use formula for tan(x+y)

Answer 12

use x = 45, y = 30

Answer 13

tan(45 + 30) =

Answer 14

It is possible to use 15 and 60 right?

Answer 15

[tan 45 + tan 30]/[1- tan 45 tan 30]

Answer 16

you dont want tan 15, becuase you dont know tan 15..its not popular angle

Answer 17

tan 45 = 1; tan 60 = sqrt(3)

Answer 18

oh i see so just use 45 and 30 to make it easier for ourselves

Answer 19

sorry...yes, I meant 45 and 30

Answer 20

tan 45 = 1; tan 30 = sqrt(3)/3

Answer 21

substitute into formula for tan(x+y)

Answer 22

so the answer would be -sqrt(3)+2 right?

Answer 23

nvm after checking multiple times the answer is sqrt(3)+2. thank you for your help!