-(nineteen *sin(x)^ two - thirty *cos(x)^ two)*sin(x)^ four *cos(x) = zero
minus (19 multiply by sinus of (x) squared minus 30 multiply by co sinus of e of (x) squared ) multiply by sinus of (x) to the power of 4 multiply by co sinus of e of (x) equally 0
minus (nineteen multiply by sinus of (x) to the power of two minus thirty multiply by co sinus of e of (x) to the power of two) multiply by sinus of (x) to the power of four multiply by co sinus of e of (x) equally zero
-(19*sin(x)2 - 30*cos(x)2)*sin(x)4*cos(x) = 0
-19*sinx2 - 30*cosx2*sinx4*cosx = 0
-(19*sin(x)² - 30*cos(x)²)*sin(x)⁴*cos(x) = 0
-(19*sin(x) to the power of 2 - 30*cos(x) to the power of 2)*sin(x) to the power of 4*cos(x) = 0