Question 1127977
Without using a calculator, find all the solutions of 
csc(t) = -1

where -pi < t (insert "greater than or equal to" symbol here) pi
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csc(t) = -1
sin(t) = 1/csc(t) = -1
t = 270 degs = 3pi/4
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For "greater than or equal to" use >=