Solve the problem.Use the angle sum formulas to derive sin (A - B) = sin A cos B - cos A sin B.
What will be an ideal response?
sin (A - B)
= sin (A + (-B))
= sin A cos (-B) + cos A sin (-B)
= sin A cos B - cos A sin B
Mathematics
You might also like to view...
Factor completely, or state that the polynomial is prime.14y3 + 63y2 - 35y
A. prime B. 7y(2y - 1)(y + 5) C. 7y(2y + 1)(y - 5) D. y(14y - 7)(y + 5)
Mathematics
Find the unknown length in the right triangle. If necessary, approximate the length to the nearest thousandth.
A. 108.5 ft B. 15.5 ft C. 217 ft D. 14.731 ft
Mathematics
Solve the problem.The formula A = 159e0.023t models the population of a particular city, in thousands, t years after 2011. When will the population of the city reach 183 thousand?
A. 2019 B. 2018 C. 2017 D. 2016
Mathematics
Find the indicated term for the geometric sequence.4, 4
, 24, ...; the 9th term
A. 5184
B. 864
C. 31,104
D. 5184
Mathematics