it is given that ad not equal to bc. then prove that (a square + b square )x + 2( ac + bd )x - ( c square + d square) has real and distinct roots.
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D=(4(a^2c^2+b^2d^2+2abcd))+(a2c2+a2d2+b2c2+b2d2)
AS ALL ARE IN SQUARES EVEN IF THE NOS ARE IN NEGATIVE IT WILL BECOME POSITIVE ... thus real roots i.e
D>0; proved
AS ALL ARE IN SQUARES EVEN IF THE NOS ARE IN NEGATIVE IT WILL BECOME POSITIVE ... thus real roots i.e
D>0; proved
tanushrinambiap42rg5:
you are genius man.........!!!!!!
but wait
real and distinct roots means D < 0 right????
nope thats for imaginary roots
oooooo thanks genius
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