Let ā, b, è and y be the three dimensional vectors a á = 5j+4k, b=3i+2j+5k, č= i +3j, y = −3i+4j Perform the following operations on these vectors: (a) c à +à ý . . (b) (à. b) à = = 35 30j + 600k (c) ((ĉ · ĉ) ā) · à = = 410

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