972^x = 8, 243^y = 16, then 3/x-4/y=?
2 Answers
Apr 10, 2018
2
Explanation:
try to eliminate 'x'
make exponent same => 2
then, you can figure
Apr 10, 2018
Explanation:
Recall that,
Accordingly,
By the Change of Base Rule (CBR), then,
where
Similarly,