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Q2: Determine the area of a triangle having
Q7: Use the half-angle formulas to simplify
Q79: Use the sum-to-product formulas to rewrite
Q124: Evaluate the trigonometric function.Round your answer
Q181: Multiply; then use fundamental identities to
Q225: Use the formula <span class="ql-formula"
Q256: Use a calculator to evaluate
Q259: Write an algebraic expression that is
Q277: Find the quadrant in which the given
Q351: Use the value of the trigonometric