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Form one equation by setting the expression inside the absolute value symbol, A, A, equal to the expression on the other side of the equation, B. B. Form a second equation by setting A A equal to the opposite of the expression on the other side of the equation, − B. − B. Solve each equation for the variable.
1. If α and β are the roots of the quadratic equation of x 2 - 4 x + 2 = 0 , determine. ( α + β ) × ( α × β ) 2. If α and β are the roots of the quadratic equation of x 2 - 4 x + 2 = 0 , determine α − β. 3. Find f g ( 4 ) where f 1 = . x . x − 2 and g ( x ) = 2 x. 4. For what value of a, the value of the term of ax 2 -2 x + 3 a. 5.
3.11 Secant, Cosecant, and Cotangent Functions. AP Precalculus. Evaluate the following expressions. Use exact values. 1. sec @. 𝜋 3. A. 2.
For the following exercises, evaluate the product for the given expression using a sum or difference of two functions. Write the exact answer.
Evaluate the following expressions. Use exact values.
Sample answer: The graph of S n S n seems to be approaching 1. This makes sense because ∑ k = 1 ∞ ( 1 2 ) k ∑ k = 1 ∞ ( 1 2 ) k is a defined infinite geometric series with S = 1 2 1 – ( 1 2 ) = 1.
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