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Consider two vectors veca = (5.0) hati...

Consider two vectors ` veca = (5.0) hati - (4.0) hatj + (2.0) hatk and vecb = (-2.0m) hati + ( 2.0)m hatj + (5. 0m) hatk,` where m is a scalar. Find
(a) `veca + vecb , (b) veca - vecb , and ` (c ) a thirs vector `vecc` such that `veca - vecb + vec c =0.`

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`(a) (5.0 - 2. 0 m) hati + (-4.0 + 2. 0 m) hatj + (2. 0+ 5. 0m) hatk,`
(b)` (5. 0 + 2. 0 m )hati + (-4.0 -2.0m) hatj+ (2. 0 - 5.0m) hatk,`
(c ) ` (-5.0-2.0m) hati + (4. 0 + 2. 0m) hatj + (2.0 - 5.0m) hatk`
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