Right side of the equation:
cos ( A - B ) - cos ( A + B ) =
= cos A cos B + sin A sin B - ( cos A cos B - sin A sin B ) =
= cos A cos B + sin A sin B - cos A cos B + sin A sin B =
= 2 sin A sin B - left side of the equation ( correct )
Answer:
x = 49.84
Step-by-step explanation:
We are given an equation of unknown x and we have to solve the equation for x.
⇒ 
⇒ 
{Since we know that ln AB =ln A + ln B}
⇒ 
⇒ 
{Since we know that ln A/B = ln A - ln B}
⇒ 
⇒ 
⇒ 
{Converting logarithm to exponent form}
⇒ x = 49.84 (Approximate) (Answer)
He gets 5 1/2 servings from the box of his favorite cereal.
The answer is C) 7.
In function 1, there is no rate of change.
In function 2, there is a rate of change of 7.
This leaves 7 as the only possible answer.
