Question

If x= cisa, y = cis B then
${x}^{3} {y}^{4} - 1 \div {x}^{3} {y}^{4} =$
​

Answer 1

Answer:

x²-xy+y²

Step-by-step explanation:

x³+y³/x+y

● (x+y)(x²-xy+y²) / (x+y)