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Consider the following statements in res...

Consider the following statements in respect of a vector `vec c=vec a+vec b`, where `|vec a|=|vec b|!=0`
1. `vec c` is perpendicular to `(vec a-vec b)`
2. `vec c` is perpendicular to `(vec a timesvec b)`
Which of the above statements is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1" nor 2

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