Answer: The identity is verified. See the explanation.
Step-by-step explanation:
You must keep on mind the following identities:

Therefore, by substitution, you can rewrite the identity as shown below:

Simpliying, you obtain:

The identity is verified.
230Ibs because altogether is 250Ibs and. Joe is 20Ibs so you subtract 250 by 20 and you get 230Ibs
18cm is the answer of this question
Answer:
never!
Step-by-step explanation:
it has infinite numbers