Question

hii
really needin' help with :

findall the anglesbetween 0 and 360 which satisfy the equations

(i) sin x+3 cos x = 0

(ii) sin (2y + 60) = 0.5

Answer 1

i) sinx=-3cosx
sinx/cosx=-3
tanx=-3

Answer 2

thank you :)

Answer 3

do you need help in ii)

Answer 4

yes please

Answer 5

first of all shift sine 0.5 we get two possible answers either 30 or 150
2y+60=30
2y+60=150
2y=-30 y=-15
2y=90 y=45

Answer 6

do you have any answer book to check if the solutions are correct or not?

Answer 7

yes thanks for helping

Answer 8

so are they correct? your most welcome :)

Answer 9

Whats the problem