In the quadratic equation Ax2+ Bx + C=0; describe the roots when 32 _ 4AC is positive. The roots are real and distinct. O The roots are complex conjugates. O The roots are real and equal. The roots are complex and equal.

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A: To Check : Which formula is not equivalent to other two in the given three formulas

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A: w(x,y,z) = xz + yz - z2∂w∂x=z,x=uv∂x∂u=v∂w∂y=zy=uv∂y∂u=v∂w∂z=x+y-2zz=u∂z∂u=1

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A: We have              y'' -6y' =-9y+7e3x+7⇒y'' -6y' +9y=7e3x+7 Here, the characteristic equation is m...

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