Question:

cos α =-24/25, α a lies in quadrant II, and sin B = √21

Last updated: 8/11/2022

cos α =-24/25, α a lies in quadrant II, and sin B = √21

cos α =-24/25, α a lies in quadrant II, and sin B = √21, ß lies in quadrant II Find cos (α + β). -48-7√21/125 14-24√21/125 -14+24/21/125 48+7√21/125