Determine the indefinite integral 1 + 2sin x I = dx . V1 - 2:2 1. I = In 1 + 2 sin x +C 2. I = - (1 + 2 sin 1x) + C 3. I = -- In 1 + sin x +C 4. I = (1 + 2 sin 'x)+ C 5. 1 = (1 + 2 sin -1 2) 2 + C 6. I = NIK In 1 + sin x + C