SOLUTION: without using calculator, show that 5 cot^2 45 degree - sec^2 60 degree + sin^2 30 degree = 5/4

SOLUTION: without using calculator, show that 5 cot^2 45 degree - sec^2 60 degree + sin^2 30 degree = 5/4

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Question 632109: without using calculator, show that 5 cot^2 45 degree - sec^2 60 degree + sin^2 30 degree = 5/4
Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!
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