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1. Find all the exact t-values for which cos t= -1/2 2. For what values of t on the interval [0, 2pi] is sin t = -sqr rt. 2/2 3. For what values of t on the interval [-pi, pi] is f(t)= cos t increasing? 4. List the transformations that change the graph of f(t)= sin t into the graph of g(t)=...