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
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2 answers
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asked by
cristiana
1
in
Science & Mathematics
➔ Mathematics