Question

If x2 + y2 = 10 xy then show that 2 log (x - y) = log x + log y + 3 log 2​

Answer 1

Step-by-step explanation:

x2+y2=10xy

x2+y2-2xy = 8xy

(x-y) 2 = 8xy

taking log both sides

2log(x-y) = log8 +logx+logy

2log(x-y) = 3log2 + logx+logy