please any brain full fellow answer this two questions
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please any brain full fellow answer this two questions
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Question:
If = 25xy , then prove that 2log(x+y)+log+logy
Solution :
= 25xy
Adding 2xy on both the sides
= 25xy +2xy
= 27xy
Taking log on both the sides
= log(27xy)
2log(x+y) = log27 + logx + logy
2log(x+y) = log + logx + logy
2log(x+y) = 3log3 + logx + logy
Hence proved
Properties of log :
● log(ab) = loga + logb
● log(a/b) = loga - logb
● log = bloga
● log1 = 0
● log0 = not defined