Determine if the statements below are true or false. (a) if f · da s = 12 and s is a flat disk of area 4π, then divf = 3 π . true false (b) if f is a vector field in 3-space, then grad(divf) = 0 i + 0 j + 0 k true false (c) if s is the unit sphere oriented outward and f is a vector field satisfying f · da s = 0 , then divf = 0 at all points inside s.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

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step-by-step explanation:

jml angle lkj & angle mj = lm