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- Find numbers a and b such that ax + by =(9, -1, 10), where x =(3, -1, 0) and y =(0, 1, 5). Is there more than one solution?7 I need perfect solution plz?14 - Since b =2i ̂-j ̂-3k ̂ and c =i ̂-5j ̂+k ̂, what is the result of ( b . c )? a) 4 B) 5i ̂-2j ̂+3k ̂ NS) -16i ̂-5j ̂-25k ̂ D) 16i ̂+5j ̂+25k ̂ TO) 3