Asked by Anonymous
Solve for x in the range 0<x<720 given tan x=-2.431
Answers
Answered by
Stecy
Answer please
Answered by
oobleck
first step: find x in QI: tan 67.6° = 2.431
tanx < 0 in QII and QIV, so you need to start with
x = 180-67.6 = 112.4°
tanx has a period of 180°, so all of your solutions will be of the form
x = (112.4 + 180k)°
use all the values of k that give answers in the desired range.
tanx < 0 in QII and QIV, so you need to start with
x = 180-67.6 = 112.4°
tanx has a period of 180°, so all of your solutions will be of the form
x = (112.4 + 180k)°
use all the values of k that give answers in the desired range.
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