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If veca=2i-hatj+hatk, vecb=hati+3hatj-ha...

If `veca=2i-hatj+hatk, vecb=hati+3hatj-hatk, vec c=-2hati+hatj-3hatk and vecd= 3hati+2hatj+5hatk,` find the scalars `alpha, beta and gamma` such that `vecd=alphaveca+betavecb+gamma vecc`

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