Question 920217
Find all solutions of the equation in the interval [0, 2&#960;). (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.)
4 sec^2 x + 2 tan^2 x &#8722; 6 = 0
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If there is no solution, enter NO SOLUTION.
These instructions are just an irritant.  Do you think we can't say "no solution?" if appropriate?
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Hint:  sec^2 = tan^2 + 1
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