Question

Помогите пожалуйста. Срочно!!!

Answer 1

${0.75}^{ - 2} - {1.5}^{ - 3} - ( - 3)^{0 } = \\ = ( \frac{3}{4} )^{ - 2} - ( \frac{3}{2} ) ^{ - 3} - 1 = \\ = ( \frac{4}{3} )^{2} - ( \frac{2}{3} ) ^{3} - 1 = \\ = \frac{16}{9} - \frac{8}{27} - 1 = \\ = \frac{48 - 8 - 27}{27} = \\ = \frac{13}{27}$