AnswersPrecalculusLaw of Sines and Law of Cosines — a Deeper Look

Law of Sines and Law of Cosines — a Deeper Look Answers

4 verified answers
1
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Use the diagram to derive the law of cosines.Which of the following statements is true?

A
cos
Option A
B
cos
Option B
C
cos
Option C
D
Option
Option D
2
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✔ b2 - 2bx + x2b2 + x2

A
b2 - 2bx + x2
B
b2 + x2
3

+2bx✔ -2bx

A
+2bx
B
-2bx
4

4) c2 = h2 + b2 -2bx + x2

A
Pythagorean theorem
B
Rearrange the previous statement
C
Assumption
D
Expand (b – x)2

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