One day, the temperature started at 12 degrees at 6:00 a.m., then climbed 3 degrees by noon, and then dropped 5 degrees by midni
1 answer:
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After substituting:
Factor out the 36, allowing the 6's to cancel
Use trig identity:
sec^2 - 1 = tan^2
Factor out the 36, allowing the 6's to cancel
Use trig identity:
sec^2 - 1 = tan^2