Derivada de = (2senx - 3cosx)∧3?

<img src="https://tex.z-dn.net/?f=%3D3%20%282senx-3cosx%29%5E%7B2%7D%20%282cosx%2B3senx%29%20%5C%5C%0A%3D3%284%20%28senx%29%5E%7B2%7D-12senxcosx%2B9%20%28cosx%29%5E%7B2%7D%29%282cosx%2B3senx%29%20%5C%5C%20%0A%3D3%284%28senx%29%5E%7B2%7D%2B4%20%28cosx%29%5E%7B2%7D%2B5%20%28cosx%29%5E%7B2%7D-12senxcosx%29%282cosx%2B3senx%29%20%5C%5C%20%0A%3D3%284%2B5%20%28cosx%29%5E%7B2%7D-12senxcosx%29%282cosx%2B3senx%29%20%5C%5C%20%0A%3D3%5B8cosx%2B12senx%2B10%28cosx%29%5E%7B3%7D%2B15senx%28cosx%29%5E%7B2%7D-24senx%28cosx%29%5E%7B2%7D%20%5C%5C%20%0A-36%28senx%29%5E%7B2%7Dcosx%5D%20%5C%5C%20%0A%3D3%5B8cosx%2B12senx%2B10%28cosx%29%5E%7B3%7D-9senx%28cosx%29%5E%7B2%7D-36%28senx%29%5E%7B2%7Dcosx%5D%20%20%20%20%20%5C%5C%20%0A%3D24cosx%2B36senx%2B30%28cosx%29%5E%7B3%7D-27senx%28cosx%29%5E%7B2%7D-108%28senx%29%5E%7B2%7Dcosx%20%20%20%20%20%20%20%20%20%20%20%20" />.