[tex]15^{5} \div 15 ^{7} [/tex]
- Whenever the bases are same, powers are different and there is a division sign between them, The powers are subtracted.
- [tex]a ^{m} \div a ^{n} = a ^{m - n} [/tex]
[tex]15 ^{ 5 - 7} [/tex]
[tex]15 ^{ - 2} [/tex]
[tex] \tt \: alternate \: from : \\ \frac{1}{15 ^{2} } [/tex]
