Let A = Andrea's age, Find expressions for the following
1 answer:
You might be interested in
Answer:
Identity is verified.
Step-by-step explanation:
We have to verify the identity
To prove any identity we always prove one side(either left hand side or right hand side) of the equation equal to the other side.
In this identity we take the left hand side first
(as we know cos(a+b) = cosa×cosb-sina×sinb)
= - sinx ( Right hand side)
Hence identity is proved.
Hey there!
I'm going to set up the equation slightly different.
let's firstly convert the mixed fractions to improper fractions and then divide.