Answers Precalculus Solving Trigonometric Equations — Unit testQuestion 8

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Solving Trigonometric Equations — Unit test

Question 8 of 25 • Precalculus

Which expression is equivalent to cos(103°)cos(54°) – sin(103°)sin(54°)?

Answer

A

sin(49°)

B

cos(49°)

C

sin(157°)

D

cos(157°)

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