Question

the scientific form log 15 + log 7 in a single logarithm form?

​

Answer 1

log(15) + log(7) = log(15×7) = log(105)

Answer 2

$\displaystyle \sf{ log \: 15 + log \: 7} = \bf \: log \: 105$

Given :

$\displaystyle \sf{ log \: 15 + log \: 7}$

To find :

To express in a single logarithm form

Formula :

$\displaystyle \sf log \: a + log \: b= log \: (ab)$

Solution :

Step 1 of 2 :

Write down the given expression

Here the given expression is log 15 + log 7

Step 2 of 2 :

Express in a single logarithm form

$\displaystyle \sf{ log \: 15 + log \: 7}$

$\displaystyle \sf{ = log \: (15 \times 7)} \: \: \: \bigg[ \: \because \:log \: a + log \: b= log \: (ab) \bigg]$

$\displaystyle \sf{ = log \: 105 }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ If 2log((x+y)/(4))=log x+log y then find the value of (x)/(y)+(y)/(x)

https://brainly.in/question/24081206

2. If log (0.0007392)=-3.1313 , then find log(73.92)

https://brainly.in/question/21121422

#SPJ3