video1.0<iframe src="https://www.loom.com/embed/7f3ba3aeb4964d8d90b1d6fbd82f2d5a" frameborder="0" width="960" height="720" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>720960Loomhttps://www.loom.com720960https://cdn.loom.com/sessions/thumbnails/7f3ba3aeb4964d8d90b1d6fbd82f2d5a-00001.jpg80p: For i = sqrt(−1) , what is the sum (7 + 3i ) + (−8 + 9i) ? a: i −1 + 12 ; i −1 − 6 ; i 15 + 12 ; i ;