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Let vec(a),vec(b),vec(c ) be unit such...

Let ` vec(a),vec(b),vec(c ) ` be unit such that ` hat(a) + hat(b ) + hat(c ) = vec(alpha) ` and ` hat(a).hat(b)=hat(b).hat(c ) =hat(c ). hat(a) = 1/2 `
Which of the following is not a unit vector ?

A

`vec(a)-vec(b)`

B

`vec(b) - vec(c )`

C

`vec(c ) - vec(a )`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
d
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