(1.3-.18sinx)^2-(1.3-.09sin(x+13.38)-.09sin(x-11.30))^2-(.09cos(x-11.3)-.09cos(x+11.3))^2=0 then x= ?
*high fives* same here...lol
-mind blown-
Pwwwwsshhhhh
Nope, not doing that, sorry.
This is a stupid question, use your calculator and make x alone on one side, it's a simple quartic inequality.
