2. According to the Law of Cosines, what does a \( a^{2} \) equal?
3. The Law of Sines can be used to

Answer

Expert–verified

Hide Steps

Answer

The Law of Sines can be used to find missing side lengths and angles in a triangle using the formula: \( \frac{a}{\mathrm{sin}\angle{A}} = \frac{b}{\mathrm{sin}\angle{B}} = \frac{c}{\mathrm{sin}\angle{C}} \)

Steps

Step 1 ：\( a^2 = b^2 + c^2 - 2bc \cdot \mathrm{cos}\angle{A} \)

Step 2 ：The Law of Sines can be used to find missing side lengths and angles in a triangle using the formula: \( \frac{a}{\mathrm{sin}\angle{A}} = \frac{b}{\mathrm{sin}\angle{B}} = \frac{c}{\mathrm{sin}\angle{C}} \)

2. According to the Law of Cosines, what does a \( a^{2} \) equal?3. The Law of Sines can be used to

Answer

Popular Problems

2. According to the Law of Cosines, what does a \( a^{2} \) equal?
3. The Law of Sines can be used to