Question

simplify and find their values​

Answer 1

Answer is one. Because anything to the power 0 is 1.

Answer 2

Answer:

1

Step-by-step explanation:

Let

$x = { ({3}^{ - 7} \div {3}^{ - 10} ) \times {3}^{ - 5} }$

and we know that

${x}^{0} = 1$