The approximate value of $\sin 31^{\circ}$ is

If the percentage error in the radius of a circle is $3\%$, then the percentage error in its area is (in $\%$)

Find the approximate value of $(1.999)^{5}$.

If the area of a square is $575$ square units,then the approximate value of its side is

If $y=2x^3-2x^2+3x-5$, then for $x=2$ and $\Delta x=0.1$, the value of $\Delta y$ is:

If an error of $0.02 \text{ cm}^2$ is found in the surface area of a sphere when its radius is measured as $10 \text{ cm}$, then the approximate error that occurs in the volume of the sphere, in cubic centimetres, is