Question

Пожалуйста срочно очень помогите ​

Answer 1

$\frac{9 {}^{ - 13} \times 9 {}^{19} }{9 {}^{5} } = \frac{9 {}^{ - 13 + 19} }{9 {}^{5} } = \frac{9 {}^{6} }{9 {}^{5} } = 9$

$27 \frac{2}{3} - 1.71 {}^{0} = 9 \times 2 - 1 = 18 - 1 = 17$

$\frac{3 {}^{17} \times 6 {}^{16} }{18 {}^{15} } = \frac{3 {}^{17} \times 6 {}^{16} }{6 {}^{15} \times 3 {}^{15} } = \frac{3 {}^{17} }{3 {}^{15} } \times 6 = 3 {}^{17 - 15} \times 6 = 3 {}^{2} \times 6 = 9 \times 6 = 54$