Solve the equation 3 sin x = 1 for 0° ≤ x ≤ 720°

Step-by-step explanation:

hello :

3 sin x = 1  means :  sin x = 1/3  

so :all x :  x = sin^-1(1/3) =19.5°+360°K  or :  x = (180°-19.5°)+360°K' ...K and K' in Z .

because : sin(x+360°K)= sinx   and   sin (180°- x ) = sinx

but :  0° ≤ x ≤ 720°

K=0 : x = 19.5°

k =1 : x=19.5°+360°=379.5°

K'=0 : x = 180°-19.5°= 160.5°

k' =1 : x=160.5°+360°=520.5°

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step-by-step explanation: