6.B] Solve \frac{\partial ^{2}z}{\partial x{\partial y}} = sin π₯ sin π¦ for which \frac{\partial z}{\partial x} = β2 sin π¦ when x= 0 and z = 0 when y is odd multiple of \frac{\Pi}{2} .
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6.B] Solve \frac{\partial ^{2}z}{\partial x{\partial y}} = sin π₯ sin π¦ for which \frac{\partial z}{\partial x} = β2 sin π¦ when x= 0 and z = 0 when y is odd multiple of \frac{\Pi}{2} .