Dayv O. answered 08/13/22
Attentive Reliable Knowledgeable Math Tutor
very nearly agree with Mark, but
csc(x)=-3, and csc=1 work exactly. 9-6-3=0 and 1+2-3=0-
need to add all x=sin-1(-1/3)+2k*pi
and all x = pi-sin-1(-1/3)+2k*pi=(2k+1)pi-sin-1(-1/3)
Dayv O.
you posted an answer that did not find the original easy root because the roots you posted are 3,-1 when in truth they are -3,1 to solve equation. It seemed fair to the student to provide true answer.08/14/22
Mark M.
The request help was for determining the second solution. Since David M. had already dememonstrated the ability to go from a specfic to a genernal solution I stopped at the general.08/14/22