If x^2+y^2=18xy then prove that 2log(x-y)=4log3+logx+logy
please give me a proper answer??
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Answer:
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Step-by-step explanation:
x
2
+y
2
=25xy....(1)
L.H.S=2log(x+y)
=log(x+y)
2
=log(x
2
+y
2
+2xy)
=log(25xy+2xy) [ from (1)]
=log(27xy)
=log(3
3
xy)
=log3
3
+logx+logy
=3log3+logx+logy
=R.H.S
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