Question

Help with Trig!!-- 2 tan x +2=0....... solve for all degree solutions and x = 0 degrees < x< 360 degrees

Answer 1

135/2 degs and 315/2 degs.

Answer 2

maybe there are more answer.s..

Answer 3

oops no. sry im wrong

Answer 4

can you please show me how to solve this step by step? please

Answer 5

im wrong

Answer 6

i moved 2 over and divided by 2 to get tax=-1

Answer 7

*tanx =-1

Answer 8

and thats true when x = 135/2 degs and 315/2 degs.

Answer 9

no no corss that, its true when 315 degs ad 135 degs..

Answer 10

OHH WAIT

Answer 11

oh so the answer is 135 and 315 degrees

Answer 12

no its not

Answer 13

only for TANX. you have 2tanx+2

Answer 14

Tan is -1 at 180 - 45 degrees = 135 degrees
and
Tan is -1 at 360 - 45 degrees = 315 degrees

Answer 15

no. plug into equation and it wont work

Answer 16

oh i just looked in the back of my textbook... it is

Answer 17

it only shows answers not steps.. i appreciate it

Answer 18

im confused.. which one has the multiple angles ? like is it tan(x/2)

Answer 19

ok nvm yeah

Answer 20

First replace tan x with something else to make it easier to do. Then solve for that new variable.
\[\text{Let tan x} = g \implies 2(tan\ x)+2 = 2g+2 \]
Then solve for g. Then replace g with tan x again and take the inverse tan to find the angle between \(\frac{-\pi}{2}\) to \(\frac{\pi}{2}\) that satisfies that result. Then you can add or subtract additional \(\pi\) values to find more angles.

Answer 21

i understand everything your telling me, howeverr.. im confused on why you subtracted 45 degrees

Answer 22

hello?

Answer 23

nvm.. i understand, thank you very much