Answer:
Distributive Property.
Step-by-step explanation:
Cos(A-B)= Cos A- Cos B
The variables in the parenthesis gets multiplied into the Cos
Cos A - Cos B
The answer will be .425. Hope it help!
Answer:
Step-by-step explanation:
2√5*√19=2√95≈19.494≈19.49≈19.5
if you want exact then 2√95
if three decimal places then 19.494,if two decimal places then 19.49 ,if one decimal place then 19.5
