Question

x/acosA = y/bsinA and ax/cosA - by/sinA = a² - b² , prove that x²/a² +y²/b²=1.

Answer 1

Answer:

Step-by-step explanation:

x/acosA = y/bsinA

x=yacosA/bsinA

SUBSTITUTE THE x VALUE IN

ax/cosA - by/sinA = a² - b²

YOU WILL GET

y=sinAb and x=acosA

NOW SUBSTITUE THE x and y VALUES WE GOT IN

x²/a² +y²/b²

THEN BY CANCELLATION PROCESS WE WILL GET VALUE 1