Question

plzz ans.....Thnk you....Logarithms

Answer 1

Hello there !!!!!

x=1+log2-log5     y=2log3      z=loga-log5

x+y=2z

(1-log5+log2)+2log3=2(loga-log5)


We can write 1=log10

So,

(log10-log5+log2)+2log3=2(loga-log5)

(log10/5+log2)+2log3=2(loga/5)

log2+log2+2log3=2(loga/5)

2log2+2log3=2(loga/5)

2(log2+log3)=2(loga/5)

We know tat loga+logb=logab

So,

2(log2+log3)=2(loga/5)

log6=loga/5

6=a/5

a=6*5=30


Hope this helped you ...........