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solve the following equations

sin x = sin x tan x ,0< or equal x < or equal 360 degrees

ans :0 , 45 ,180,225,360 degrees

i would like to know how to get the ans 0, 180 and 360?

because i do in this method and only managed to get 2 answers from the 5 answers

sin x/ sin x tan x =1
1/ tan x =1
tan x =1 (1st/3rd quadrant)
basic angle = tan inverse 1
= 45 degrees

x = 45 , 180+45
= 45 , 225 degrees

2007-09-07 03:17:32 · 2 answers · asked by cristiana 1 in Science & Mathematics Mathematics

2 answers

sin x - sin x tan x = 0
sin x (1 - tan x) = 0
sin x = 0 , tan x = 1
x = 0° , 180° , 360° , 45° , 225°

2007-09-07 03:46:47 · answer #1 · answered by Como 7 · 1 0

you read problem incorrectly

2007-09-07 10:33:04 · answer #2 · answered by rwbblb46 4 · 0 1

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