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For the relation R ( X , Y , Z , V , W ) where X and W are keys, note for each of

For the relation R $($ X $,$ Y $,$ Z $,$ V $,$ W $)$ where X and W are keys, note for each of the following projections if it will have the same number of rows as R: explain your answers: pivx $($ R $),$ piwx $($ R $),$ pix $($ R $),$ pixy $($ R $),$ piwxyz $($ R $)$

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For the relation R ( X , Y , Z , V , W ) where X and W are keys, note for each of

For the relation R(X,Y,Z,V,W) where X and W are keys, note for each of the following projections if it will have the same number of rows as R: explain your answers: pivx(R ), piwx(R),pix(R),pixy(R),piwxyz(R)

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For the relation R $($ X $,$ Y $,$ Z $,$ V $,$ W $)$ where X and W are keys, note for each of the following projections if it will have the same number of rows as R: explain your answers: pivx $($ R $),$ piwx $($ R $),$ pix $($ R $),$ pixy $($ R $),$ piwxyz $($ R $)$