Evaluate: 5cos2 60 + 4sec2 30-tan2 45 / sin2 30+sin2 60 - Bzziii

Evaluate:

`\frac{5cos^2 60^0+4sec^2 30^0-tan^2 45^0}{sin^2 30^0+sin^2 60^0}`









`\frac{5cos^2 60^0+4sec^2 30^0-tan^2 45^0}{sin^2 30^0+sin^2 60^0}`

`\frac{5(\frac{1}{2})^2 + 4(\frac{2}{\sqrt{3}})^2-(1)^2}{(\frac{1}{2})^2+(\frac{\sqrt{3}}{2})^2}`

`\frac{5(\frac{1}{4})+(\frac{16}{3})-1}{\frac{1}{4}+\frac{3}{4}}`

`\frac{\frac{15+54-12}{12}}{\frac{4}{4}}`

`\frac{67}{12}`







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