4sinx+3cosx=0
the range is from 0-360
Solve in exact form without using the calculator

Question

4sinx+3cosx=0 
the range is from 0-360 
Solve in exact form without using the calculator

anonymous · Answer

Sorry that's all my teacher specified

cwrw238 · Answer

i think we can do this by dividing through by cos x
4sinx  + 3 cosx  =  0
----          ----
cos x          cos x

4 tan x + 3 = 0
tan x = -3/4

anonymous · Answer

alright I got that same answer (: thanks

cwrw238 · Answer

yea but how do you get value of x  without a calculator??

cwrw238 · Answer

your welcome

anonymous · Answer

it was a non calculator question. like that would've been the answer

anonymous · Answer

take the inverse tangent next, and you'll get x

cwrw238 · Answer

??

cwrw238 · Answer

oh you mean arctan (-3/4)

anonymous · Answer

it's an ib thing. sorry but that was the answer

anonymous · Answer

if you wanna know what value of x makes tanx = -3/4, take the inverse

anonymous · Answer

yeah arctan, i guess that would be more clear to say lol