
Retake: Unit 3 Laws, Area, and Trig Identities
Flashcard
•
Mathematics
•
12th Grade - University
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the formula for the area of a triangle given its base and height?
Back
Area = \frac{1}{2} \times base \times height.
2.
FLASHCARD QUESTION
Front
What is the Law of Cosines?
Back
c^2 = a^2 + b^2 - 2ab \cdot \cos(C), where a, b, and c are the sides of the triangle and C is the angle opposite side c.
3.
FLASHCARD QUESTION
Front
What is the Law of Sines?
Back
\frac{a}{\sin(A)} = \frac{b}{\sin(B)} = \frac{c}{\sin(C)}, where a, b, and c are the sides of the triangle and A, B, and C are the angles opposite those sides.
4.
FLASHCARD QUESTION
Front
What is the value of \sin(90^\circ)?
Back
1
5.
FLASHCARD QUESTION
Front
What is the value of \cos(0^\circ)?
Back
1
6.
FLASHCARD QUESTION
Front
What is the value of \tan(45^\circ)?
Back
1
7.
FLASHCARD QUESTION
Front
What is the Pythagorean identity?
Back
\sin^2(x) + \cos^2(x) = 1.
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