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If a2+b2 = c2 , then 1logc+ab + 1logc-ab = ?

Correct Answer: 2

Explanation:

Given  a 2   +   b 2   =   c 2


 


Now   1 log c + a b     +   1 log c - a b  


 


log b c + a   +   log b c - a


 


log b c 2 - a 2


2 log b b   =   2


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