Answer:
C
Step-by-step explanation:
The difference formula for cosine is
cos(x - y) = cosxcosy + sinxsiny
Consider
cos75 = cos(120 - 45)°, then
cos(120 - 45)°
= cos120°cos45° + sin120°sin45° → C
Answer:ok so it is 1 A 2C 3 F 4H
Step-by-step explanation:
Answer:
60
Step-by-step explanation:
DEF=180
DE=120
180-120=60
i hope this helps
Answer:32
Step-by-step explanation: First you do 4×4×4×
=64 then you divide by 2.. 64÷2=32
Answer: 16
Step-by-step explanation:

Let's complete the square.


