10
QuizMultiple Choice

Trigonometric Difference Identities — Quiz

Question 10 • Precalculus

What is the value of sine open paren 80 degrees close paren minus cosine open paren 80 degrees close paren ?

Answer
A
1 half
B
negative the fraction with numerator square root of 3 and denominator 2
C
the fraction with numerator square root of 3 and denominator 2
D
negative 1 half