Question

Elimate o, it x=a, seco, y= b tano​

Answer 1

Answer:

x=asecA, y=btanA

x²=a²sec²A

y²=b²tan²A

x²/a²=sec²A

y²/b²= tan²A

x²/a²-y²/ b²=sec²A-tan²A=1

x²/a²-y²/ b²=1