You can use the cosine rule for this - you might have to change some of the letters around for it to make sense though. Hope this helps!
Answer:
I have given the answer in the chat box as i was not able to post officialy
Step-by-step explanation:
First we rewrite the expression:
(4x ^ 3) * (2x) ^ - 4
Using properties of exponents we have:
(4x ^ 3) / (2x) ^ 4
Rewriting:
(4x ^ 3) / 16x ^ 4
(x ^ 3) / 4x ^ 4
(1) / (4x)
answer:
An equivalent expression is:
(1) / (4x)
option 1