When using integration to find deflection, what does $\frac{d^{2}v}{d{x}^2}=?$

$\frac{M}{(E*I{)}^2}$

$M*E*I$

$\frac{M}{E*I}$

$\frac{M*I}{E}$

Question $2$

What is the name of the method used to find displacement that uses geometric features of $\frac{V}{M}$ diagram?

Moment$-$Area

Shear$-$Area

Centroid$-$Area

Shear$-$Moment

Question $3$

Which method uses charts to determine displacement?

Moment$-$Area

Integration

Discontinuity

Superposition