2+ 2 and 3, I hope this helps but if it is wrong please correct it
8 to the power -2 = 8^(-2) is equal to 1/64, or 1 / (8^2). Are there any other correct answers? Experiment, please.
Answer:
r = 2
Step-by-step explanation:
We have the formula of
Now, it is given that
........ (1)
And we have to find the value of r which satisfy the above equation.
So,
Now, we have to use the trial method to find the value of r.
For r = 1,
Hence, r can not be 1.
Now, put r = 2,
Therefore, r = 2 (Answer)