Answer:
the question is only this much or there are the another question too
Answer:
replace x with each of the value then solve for the value
Step-by-step explanation:
when raised to the power of a negative you do the inverse
2^-2 = 2^1/2
Step-by-step explanation:

Answer:
The answer is 2pi.
Hope this helps you. Also if you practice your material better you won't need to ask. Studying is the medicine to all problems xD