Question

Anyone can help me plzz

Answer 1

heya,

here is urr question is little bit wrong..
at the place of x/asin¢+y/bcod¢ it should be
.x/bsin¢-y/bcos¢
>

then,

ist of all squaring it
(.x/acos¢+y/bcos¢)^2+(x/asin¢-y/bcos¢)^2+1^2+1^2

=)x^2/y^2cos^2¢+y^2/b^2sin^2¢+2x/asin¢*y/bcos¢+x^2/a^2sin¢+y^2/b^2cos^2¢+2x/asin¢*y/bcos¢=1^2+1^2

=)x^2/b^2(sin^2¢+cos^2¢)+y^2/b^2(cos^2¢+sin^2¢)=1+1

=)x^2/a^2+y^2/b^2=2
prooved. here.

hope it help you


@rajukumar☺