Question

pls slove....................​

Answer 1

Answer:

$(12)^{ - 2} \times {3}^{3} \\ = \frac{1}{(12)^{2} } \times {3}^{3} \\ = \frac{1}{(4 \times 3)^{2} } \times {3}^{3}\\ = \frac{1}{4^{2} \times 3^{2} } \times {3}^{3 } \\ = \frac{1}{4^{2} } \times {3}^{3 - 2}\\ = \frac{1}{16 } \times {3}\\ = \frac{3}{16 } \\ \\ ( - 5)^{4} \times ( - 5)^{6} \div ( - 5)^{9} \\ = {5}^{4} \times {5}^{6} \div - {5}^{9} \\ = {5}^{4 + 6} \div - 5 ^{9} \\ = \frac{ {5}^{10} }{ - {5}^{9} } \\ = - {5}^{10 - 9} \\ = - 5$