Question

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

Answer 1

Sorry that's all my teacher specified

Answer 2

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

Answer 3

alright I got that same answer (: thanks

Answer 4

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

Answer 5

your welcome

Answer 6

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

Answer 7

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

Answer 8

??

Answer 9

oh you mean arctan (-3/4)

Answer 10

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

Answer 11

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

Answer 12

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