Sin^2 60 - tan^2 45 + cos ^2 30 - cot 90 = _______

1.	Sin^2 60 - tan^2 45 + cos ^2 30 - cot 90 = _______
Answer» Sin²60=(√3/2)²=3/4.Tan²45=(1)²=1.Cos²30=(√3/2)²=3/4.Cot²90=(0)²=0.Sin²60-Tan²45+Cos²30-Cot²90=3/4-1+3/4-0.=3/4-1+3/4.=3-4+3/4.=6-4/4.=2/4.=1/2. ,?

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