Find the divergence of each of the following vector fields.

(a)\mathrm{div} ( \, -3x\boldsymbol{i}-2y\boldsymbol{j} \, ) =

(b)\mathrm{div} ( \, -3y\boldsymbol{i}+2x\boldsymbol{j} \, ) =

(c)\mathrm{div} ( \, 2x\boldsymbol{i}+2y\boldsymbol{j} \, ) =

(d)\mathrm{div} ( \, \left(3x^{2}+3y^{2}\right)\boldsymbol{i}+5xy\boldsymbol{j} \, ) =

(e)\mathrm{div} ( \, 5x\boldsymbol{i}-5y\boldsymbol{j} \, ) =

(a)

(b)

(c)

(d)

(e)

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