" 2) Solve ":a^(2)x+b^(2)y=c^(2),b^(2)x+a^(2)y=d^(2)

Solve the following system of equations by method of cross-multiplication: a^(2)x+b^(2)y=c^(2),quad b^(2)x+a^(2)y=d^(2)

Solve: a^2x+b^2y=c^2; b^2x+a^2y=d^2

If x=a sec theta and y=b tan theta, then b^(2)x^(2)-a^(2)y^(2)=( a )ab(b)a^(2)-b^(2)(c)a^(2)+b^(2) (d) a^(2)b^(2)

Solve :x+y=a+bax-by=a^(2)-b^(2)

Solve :a(x+y)+b(x-y)=a^(2)-ab+b^(2)a(x+y)-b(x-y)=a^(2)+ab+b^(2)

If x=a cos theta and y=b sin theta, then b^(2)x^(2)-a^(2)y^(2)=a^(2)b^(2)( b) ab(c)a^(4)b^(4)(d)a^(2)+b^(2)

Solve: (x)/(a)+(y)/(b)=a^(2)+b^(2) and (x)/(a^(2))+(y)/(b^(2))=a+b

If a/(y+z) = b/(z + x) = c/(x+y) , then prove that (a(b-c))/(y^(2)-z^(2)) = (b(c-a))/(z^(2)-x^(2)) = (c(a-b))/(x^(2)-y^(2)) .

If x=10 and y=0.1, which of the following is the greatest? x^(2)+y^(2)( b) x^(2)-y^(2)( c) x^(2)backslash y^(2) (d) (x^(2))/(y^(2))