Решите
1) ( - 6/7 x³y⁵ )² = 36/49x⁶y¹° 2) ( - 2/3 xy )³ = - 8/27 x³y³ 3) ( 1 1/6 yx² ) = 7/6 x²y ---------------------------------- ( 36/49 x⁶y¹⁰ )*( - 8/27 x³y³ )*( 7/6 x²y ) = - 16/63 x¹¹y¹⁴