two *((sin(x)^ two - cos(x)^ two)*sin(x)^ two - (sin(x)^ two - cos(x)^ two)*cos(x)^ two - four *sin(x)^ two *cos(x)^ two) = zero
2 multiply by (( sinus of (x) squared minus co sinus of e of (x) squared ) multiply by sinus of (x) squared minus ( sinus of (x) squared minus co sinus of e of (x) squared ) multiply by co sinus of e of (x) squared minus 4 multiply by sinus of (x) squared multiply by co sinus of e of (x) squared ) equally 0
two multiply by (( sinus of (x) to the power of two minus co sinus of e of (x) to the power of two) multiply by sinus of (x) to the power of two minus ( sinus of (x) to the power of two minus co sinus of e of (x) to the power of two) multiply by co sinus of e of (x) to the power of two minus four multiply by sinus of (x) to the power of two multiply by co sinus of e of (x) to the power of two) equally zero
2*((sin(x) to the power of 2 - cos(x) to the power of 2)*sin(x) to the power of 2 - (sin(x) to the power of 2 - cos(x) to the power of 2)*cos(x) to the power of 2 - 4*sin(x) to the power of 2*cos(x) to the power of 2) = 0