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limit and solving trigometric equation

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(See attached files for full problem description)
1. Find the limit: lim(t-->0) t^2/(1-cost)

2. solve the following trigometric equation
tan(2x) = 2sin(x), where 0<=0< 360 degrees

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Solution Summary

The solution shows how to find a 0/0 type limit in detail. Furthermore, using the trigonometric relationship, especially double angle formula, the solution solves a trigonometric equation step-by-step.

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