Вычислите:

sin60xcos330+cos180 + (sin225-cos (-45)) ^2

Sin60=√3/2

cos330=cos (360-330) = cos30=√3/2

cos180=-1

sin225=sin (270-45) = - cos45=-√2/2

cos (-45) = - √2/2

(sin225-cos (-45)) ² = (-2√2/2) ²=8/4=2

sin60*cos330+cos180 + (sin225-cos (-45)) ² = (√3/2) ²-1+2=3/4+1=7/4=1,75

Ответ: 1,75