Which of the following are identities? Check all that apply.
A. cos(x + y) + cos(x - y) = 2cosxcosy
B. sin(x + y)- sin(x - y) = 2cosxsiny
C. sin(x - pi)= - sinx
D. cos(x + y) + cos(x - y) = cos^2x-sin^2y

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

f is the midpoint of

2/3

step-by-step explanation:

answer: i believe the answer is e

step-by-step explanation: