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His effort is an A? Verify the identity: cos^2 theta - sin^2 theta = 2cos^2 theta -1? Find the area of the region enclosed by one loop of the curve.
r = sin(12θ).. please help!? Solve and write interval notation for the solution set. with steps. Then Graph the solution set. -1≤x-4<8? How would you describe the structure of 3-Aminophthalhydrazide?