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Magazine Problem 8
In Exercises \(1-10,\) plot each complex number and find its absolute value. $$ z=4-i $$
Problem 9
In Exercises \(1-10,\) plot each complex number and find its absolute value. $$ z=-3+4 i $$
Problem 9
In Exercises 9鈥�16, solve each triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. $$ A=44^{\circ}, B=25^{\circ}, a=12 $$
Problem 9
Solve each triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. $$a=5, b=7, C=42^{\circ}$$
Problem 9
Test for symmetry with respect to a. the polar axis. b. the line \(\theta=\frac{\pi}{2}\) c. the pole. $$ r=4+3 \cos \theta $$
Problem 9
Let $$\mathbf{u}=2 \mathbf{i}-\mathbf{j}, \quad \mathbf{v}=3 \mathbf{i}+\mathbf{j}, \quad \text { and } \quad \mathbf{w}=\mathbf{i}+4 \mathbf{j}$$ Find each specified scalar. $$ \mathbf{u} \cdot(\mathbf{v}+\mathbf{w}) $$
Problem 10
In Exercises 9鈥�16, solve each triangle. Round lengths to the nearest tenth and angle measures to the nearest degree. $$ A=56^{\circ}, C=24^{\circ}, a=22 $$
Problem 10
Test for symmetry with respect to a. the polar axis. b. the line \(\theta=\frac{\pi}{2}\) c. the pole. $$ r=2 \cos 2 \theta $$
Problem 10
In Exercises \(1-10,\) plot each complex number and find its absolute value. $$ z=-3-4 i $$
Problem 10
Let $$\mathbf{u}=2 \mathbf{i}-\mathbf{j}, \quad \mathbf{v}=3 \mathbf{i}+\mathbf{j}, \quad \text { and } \quad \mathbf{w}=\mathbf{i}+4 \mathbf{j}$$ Find each specified scalar. $$ \mathbf{v} \cdot(\mathbf{u}+\mathbf{w}) $$
