Question

write as a single power of 7
​

Answer 1

Answer:

7^-9×÷7^9

7^-18 this one may help you

Answer 2

Answer:

${7}^{ - 9} \div {7}^{9}$

${7}^{ - 9 - 9}$

${7}^{ - 18} \: ans$

if it is simple divide then

$\frac{1}{ {7}^{18} } \: ans$