Simplify the trigonometric expression by following the indicated direction.Multiply and simplify: 
Fill in the blank(s) with the appropriate word(s).
Answer: 2
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Solve using Cramer's rule, if possible. If it is not possible, state whether the system is inconsistent or has infinitely many solutions.
A. (6, 1, 6) B. (5, -6, -1) C. (6, 4, 1) D. (5, 6, 1)
Let 
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Use a Riemann sum with four subintervals of equal length (
) to approximate the area of R (under the graph of f on the interval [0, 2]). Choose the representative points to be the left end points of the subintervals.
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Repeat previous part with eight subintervals of equal length (
).
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Compare the approximations obtained in previous parts with the exact area (4 sq units). Do the approximations improve with larger n?
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A. 4.8 sq units; 4.4 sq units; yes
B. 4.4 sq units; 4.8 sq units; yes
C. 4.8 sq units; 4.4 sq units; no
D. 4.4 sq units; 4.8 sq units; no
Find the slope-intercept form of the equation of the line with the given properties.Slope = 0; containing the point (-6, -8)
A. x = -8 B. y = -8 C. y = -6 D. x = -6
Determine if the graph is symmetric with respect to the x-axis, y-axis, or origin.
A. x-axis, origin B. y-axis, origin C. Origin D. y-axis