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Phoenix [80]
3 years ago
14

If x=10^a , y=10^b and x^b.y^a=100.prove that xy=1​

Mathematics
1 answer:
BabaBlast [244]3 years ago
8 0

Answer:

ab=1

Step-by-step explanation:

Assuming that you meant ab=1

x=10^{a}\\\\y=10^b\\\\x^b*y^a=100\\\\(10^a)^b*(10^b)^a=100\\\\10^{ab}*10^{ba}=100\\\\10^{ab+ba}=100\\\\10^{2ab}=100\\\\(10^2)^{ab}=100\\\\100^{ab}=100\\\\ab=1this is because the exponents have to be equal

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