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Evaluate.

(i)

(ii)

(iii)

(i) Formula:

By using above formula in question:

(ii) Formula:

(iii) Formula:

Simplify and express the result in power notation with positive exponent.

(i) (-4)^{5} ÷ (-4)^{8}

(iv) (3^{-7} ÷ 3^{-10}) × 3^{-5}

(v) 2^{-3} × (-7)^{-3}

Find the value of.

(iv)

(v)

Evaluate

Find the value of m for which 5^{m }÷ 5^{-3} = 5^{5}.

Simplify