Rút gọn (P = frac{{sqrt[5]{{{b^2}sqrt b }}}}{{sqrt[3]{{bsqrt b }}}},,(b > 0).)

Đáp án B

C₆H₅COOCH₂CH=CH₂ + NaOH → C₆H₅COONa + CH₂=CH-CH₂OH

CH₂=CHCH₂COOC₆H₅ + 2NaOH → CH₂=CHCOONa + C₆H₅ONa + H₂O

CH₃COOCH=CHC₆H₅ + NaOH → CH₃COONa + C₆H₅CH₂CHO

C₆H₅CH₂COOCH=CH₂ + NaOH → C₆H₅CH₂COONa + CH₃CHO
 

Rút gọn $P = \frac{{\sqrt[5]{{{b^2}\sqrt b }}}}{{\sqrt[3]{{b\sqrt b }}}}\,\,(b > 0).$

• A. $P = {b^{\frac{6}{5}}}.$
• B. $P = {b^{\frac{1}{{30}}}}.$
• C. $P = 1$
• D. $P = {b^{\frac{5}{6}}}.$