#math - calc bc
11 messages · Page 1 of 1 (latest)
What was your issue? If y cos (xy) = 0, then cos(xy) = 0 since y is not 0, then it should be pretty simple from there
i know
that means xy = odd multiple of pi/2
idk what to do frmo ther
thats all
you know y^2 = sin(xy)
what do get from that
xy is an odd multiple of pi/2, so think abt it being on the very top or very bottom of the unit circle
so sin xy is -1 or 1