Chapter 6: Problem 60
Convert each polar equation to a rectangular equation. Then use a rectangular coordinate system to graph the rectangular equation. $$r=10$$
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Chapter 6: Problem 60
Convert each polar equation to a rectangular equation. Then use a rectangular coordinate system to graph the rectangular equation. $$r=10$$
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A force of 6 pounds acts in the direction of \(40^{\circ}\) to the horizontal. The force moves an object along a straight line from the point (5,9) to the point \((8,20),\) with the distance measured in feet. Find the work done by the force.
Find the angle between \(\mathbf{v}\) and \(\mathbf{w} .\) Round to the nearest tenth of a degree. $$\mathbf{v}=-3 \mathbf{i}+2 \mathbf{j}, \quad \mathbf{w}=4 \mathbf{i}-\mathbf{j}$$
Verify the identity: $$ \csc x \cos ^{2} x+\sin x=\csc x $$
Find the work done when a crane lifts a 6000-pound boulder through a vertical distance of 12 feet. Round to the nearest foot-pound.
Determine whether v and w are parallel, orthogonal, or neither. $$\mathbf{v}=-2 \mathbf{i}+3 \mathbf{j}, \quad \mathbf{w}=-6 \mathbf{i}-9 \mathbf{j}$$
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