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Chapter 6: Problem 22
Solve each triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. $$a=5, b=5, c=5$$
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Use a graphing utility to graph \(r=1+2 \sin n \theta\) for \(n=1,2,3,4,5,\) and \(6 .\) Use a separate viewing screen for each of the six graphs. What is the pattern for the number of large and small petals that occur corresponding to each value of \(n\) ? How are the large and small petals related when \(n\) is odd and when \(n\) is even?
Exercises \(81-83\) will help you prepare for the material covered in the next section. Simplify and round to the nearest whole number: $$ \sqrt{26(26-12)(26-16)(26-24)} $$
Exercises \(81-83\) will help you prepare for the material covered in the next section. Find the obtuse angle \(B,\) rounded to the nearest degree, satisfying $$ \cos B=\frac{6^{2}+4^{2}-9^{2}}{2 \cdot 6 \cdot 4} $$
A force of 80 pounds on a rope is used to pull a box up a ramp inclined at \(10^{\circ}\) from the horizontal. The rope forms an angle of \(33^{\circ}\) with the horizontal. How much work is done pulling the box 25 feet along the ramp?
Verify the identity: $$\frac{1+\sin x}{1-\sin x}-\frac{1-\sin x}{1+\sin x}=4 \tan x \sec x$$ (Section 5.1, Example 5)
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