SOLUTION: Find the exact value of the following without calculators: (6sec180degrees-4cot90degrees)^2

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Question 1090931: Find the exact value of the following without calculators:
(6sec180degrees-4cot90degrees)^2
Answer by ikleyn(52815) About Me  (Show Source):
You can put this solution on YOUR website!
.
sec(180°) = 1%2Fcos%28180%5Eo%29 = 1%2F%28-1%29 = -1.


cot(90°) = 0.

From this point, can you complete calculations ?