Question

if x square +y square = 25 then show that 2l log x + y =3 logs + log x

Answer 1

Hello friend

We can solve this if the question is in this way..

x2+y2=25xy

(Here I mean to say x square by x2)

Adding 2xy on both the sides

x2 + y2 + 2xy = 25xy + 2xy

(x+y)^2=27xy

Applying logarithm on both sides

Log (x+y) ^2 = log 27xy

2log (x+y) = log 3^3+logx+logy

2log (x+y) = 3log 3+logx+logy

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HOPE IT HELPS!