![]() ![]() However, you do not want to pay for a course that covers concepts you have already mastered. You need to start in a course that will allow you to be successful. The only reason you would want to take another placement test is if you believe your current placement does not appropriately represent your current mathematics skills. If you have taken the ACT or the SAT: Your ACT Math s ubscore or SAT Math s core has already determined your placement. Not everyone needs to take an additional mathematics placement test. Use identities to solve trigonometric equations.Use sum and difference formulas for cosines and sines.Use the fundamental trigonometric identities to verify identities.Find exact values of composite functions with inverse trigonometric functions.Understand the graph of y = sin x, and graph variations of y = sin x.Solve applied problems involving exponential and logarithmic equations.Use the definition of a logarithm to solve logarithmic equations. ![]()
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