X^y=y^x and x=2y prove that y=2.
1 answer:
Answer:


Substitute (2) into (1):

Log both sides:





Divide by y on both sides:


2= y
y= 2 (proved)
Explanation:
• step 5: lg(m)^n= nlg(m)
• Step 6: lg(mn)= lg(m) +lg(n)
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