AnswersAlgebra 2 MP 234 CHSChanges in Period and Phase Shift of Sine and Cosine Functions — Unit testQuestion 7
7
QuizMultiple Choice
Changes in Period and Phase Shift of Sine and Cosine Functions — Unit test
Question 7 of 15 • Algebra 2 MP 2,3,4 CHS
When deriving the Law of Cosines, the equation is created using the Pythagorean theorem. Use substitution to replace in the equation below and then simplify.
Answer
A
square of c = square of a + square of b minus 2bx
B
square of c = square of a minus square of b minus 2bx
C
square of c = square of a minus square of x + square of b minus 2bx + square of x
D
square of c = square of h + square of a + square of b minus 2bx