
• Some of the properties of the log are as follows :
1) <u>Product law </u><u>-</u>

2) <u>Divisio</u><u>n</u><u> </u><u>law</u><u> </u><u>-</u>

3) <u>Power law -</u>

4) We should also know that -

• To prove R.H.S equals to L.H.S, there exists three conditions :
1) To make R.H.S equals to L.H.S
2) To make L.H.S equals to R.H.S
3) To simplify both side equations and make them equal to a single value
In proving these questions, we're going to apply 2nd condition though all the three conditions described above are convertible to each other.
<u>Now, let's </u><u>start</u><u>!</u>


<u>Taking</u><u> </u><u>L.H.S</u>

✦ Prime factors of 630 -


• Using first property

• Using <u>third</u> property



<u>Taking L.H.S</u>


• Using third property

• As we know log10 = 1




