So Tan x=5/4? If so, Im confused on what to do next
ignore those comments
sin(2x)= 2sin(x) cos(x) this is an identity
now solve for x
Sorry to be a bother, but how'd you get it to match the identity like that?
i multiplied both sides by 2cosx
since that would make the left side equal to sin(2x)
now u end up with nice working equations
by divide both sides by cos(x)
ugh lemme think what can we do with this now
you gotta solve these 2 system of equations somehow
Since the problem only asks for What Sin2x equals, wouldn't -2Cos^2(x)+5/2Cos(x) be correct?
well i guess, but are u sure they arent looking for value for x
I just checked. They only want Sin2x=... Thank you so much
ok you're welcome!