Question

Pierwiastki pomożesz ??

Answer 1

4.

√(5a⁵b²) ÷ √(5a) = √(5a⁵b²/5a) = √(a⁴b²) = a²b 

dla a = -3,  b = ⅔

a²b = (-3)²·(⅔) = 9·(⅔) = 6

 

7.

√5/√2 = √75/√30 

 

8.

(2√3-5√2)/4√12 · √12/√12 = √12(2√3-5√2)/(4·12) = (2√36-5√24)/48 = (2*6-5*2√6)/48 =

= (12-10√6)/48 = 1/4 - 5√6/24