SOLUTION: 2{[cos⁡^2 20+cos⁡^2 70)/(cosec^2 25-tan⁡^2 65)}-tan 45 +tan13 tan 23 tan30 tan 67 tan 77

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Question 985151: 2{[cos⁡^2 20+cos⁡^2 70)/(cosec^2 25-tan⁡^2 65)}-tan 45 +tan13 tan 23 tan30 tan 67 tan 77
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Idk what those squiggles are, but it looks like a calculator problem.