Question

plz answer step by step i will mark u as brainlist ​

Answer 1

Explanation:

(a) Given :

$( { \frac{2 {x}^{4} }{y} )}^{5} \div { (\frac{ - 4x}{ {y}^{2} } )}^{3}$

$( {2}^{5} \times {x}^{4 \times 5} \times {y}^{ - 1 \times 5} ) \times ({ \frac{ {y}^{2} }{ - 4x} )}^{3}$

$( {2}^{5} \times {x}^{20} \times {y}^{ - 5} ) \times { ({y}^{2} )}^{3} \times { (- 4)}^{ - 3} \times {x}^{ - 3}$

$- {(2}^{5} \times {2}^{ - 6} ) \times ( {x}^{20} \times {x}^{ - 3}) \times {y}^{ - 5} \times {y}^{6}$

$- {2}^{ - 1} \times {x}^{20 - 3} \times {y}^{ - 5 + 6}$

$- ( \frac{ {x}^{17}y }{2} )$

Hence, the answer.

(b) Given :

$2 {p}^{2} {q}^{3} \times 5pq \: \div 10 {p}^{3} { {q}^{4} }$

$10 \times {p}^{2 + 1} \times {q}^{3 + 1} \div 10 {p}^{3} {q}^{4}$

10 \times {p}^{3} \times {q}^{4} \div 10 {p}^{3} {q}^{4}

= 1