Use the definition or identities to find the exact value of the indicated trigonometric function of the acute angle ?.sin ? = 
Find tan ?.
A. 
B. 
C. 2
D. 
Answer: A
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Solve the problem.Consider a small region inside an elastic material such as gelatin. As the material "jiggles", this small region oscillates about its equilibrium position (x0, y0, z0). The force that tends to restore the small region to its equilibrium position can be approximated as F = - k(x - x0)i - k(y - y0)j - k(z - z0)k Find a potential function f for this force field.
What will be an ideal response?
Solve the equation. If the equation has no real solution, so state.
- 3 = 
A. No solution B. x = -5 C. x = 25 D. x = -25
Make the indicated conversion between American and metric units of weight and mass using the given property or properties. Round the answer to two decimal places if necessary.A label on a box shows that the box weighs 180 kilograms. How many pounds is that?
A. 457.2 pounds B. 396 pounds C. 81.7 pounds D. 190.8 pounds
Without using a graphing utility, determine the symmetries (if any) of the curve.r = 6 + 2 sin
A. x-axis B. the origin C. y-axis D. no symmetry