Find another angle between 0 degrees and 360 degrees that has the same cosine as 215 degrees and find an angle that has the same sine as 215 degrees

Answer 1

cosine 215 = -.819

cos180-35 = cosine 145 = -.819

145 is the angle with same cosine as 215

180+/-35

sin215 = about -57

sin 360-(215-180) = sin 360-35) = sin 325 = about -.57

325 is the angle with same sine as 215

90+/-125 = 215 or -35=325