Question

1)b⁵:b²; 2)y¹¹:y⁷; 3)a⁷:a⁷; 4)b⁹:b⁹.​

Answer 1

Ответ:

Объяснение:

1) b⁵:b²=b⁵-²=b³

2) y¹¹:y⁷=y¹¹-⁷=y⁴

3)a⁷:a⁷=a⁷-⁷=a⁰=1

4) b⁹:b⁹=b⁹-⁹=b⁰=1

Answer 2

Ответ:

$b {}^{5} \div b {}^{2} = b {}^{5 - 2} = b {}^{3} \\ y {}^{11} \div y { {}^{} }^{7} = y {}^{11 - 7} = y {}^{4} \\ a {}^{7} \div a {}^{7} = 1 \\ b {}^{9} \div b {}^{9} = 1$