1.

1 3x+4y_3x 4y, let us show that yevX(1) If_3u +4v3u-4y!!

Answer»

3x+4y/3u+4v = 3x-4y/3u-4v; (3x+4y)(3u-4v)=(3x-4y)(3u+4v); (9xu-12xv+12yu-16vy)=(9ux-12xv-12uy-16vy)=-24xu+24th = 24xu=24yv= xu=uy; x/y=u/v



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