Question

im taking pre-calculus im in Ch. 5.3 and there is a problem and its tanx+1=0

Answer 1

tanx = -1
x = -pi/4 or 3pi/4

all solutions are:
x = -pi/4 + k(pi) or 3pi/4 + k(pi), where k is an integer

Answer 2

thanks , so i dont add[ +n(pi)] ?

Answer 3

if it's asking for all solutions the yes. Otherwise, just -pi/4 or 3pi/4

Answer 4

ohhhh okay , i might be wrong but when i was doing this problem earlier my final answers were [ 3(pi)\4+n(pi) , 7(pi)\4+n(pi) which in degrees were 135 and 315 , and since i missed out on the lesson i was confuse

Answer 5

-pi/4 (which is -45 degrees) and 315 degrees are the exact same angle