The geometric mean of numbers a and b is 3, and their arithmetic mean is 6. Accordingly, what is the arithmetic mean of $\mathrm { a } ^ { 2 }$ and $\mathrm { b } ^ { 2 }$? A) 67 B) 65 C) 63 D) 61 E) 57
The geometric mean of numbers a and b is 3, and their arithmetic mean is 6.
Accordingly, what is the arithmetic mean of $\mathrm { a } ^ { 2 }$ and $\mathrm { b } ^ { 2 }$?\\
A) 67\\
B) 65\\
C) 63\\
D) 61\\
E) 57