Question

$(3 {}^{10} \div 3 {}^{7}) \times {3}^{ - 5}$
plz sovle plz



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Answer 1

(3^10÷3^7) × 3^-5

= (3^10-^7) × 3^-5

= 3^3 × 3^-5

= 3^3+(^-5)

= 3^3-^5

= 3^-2