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The value of vec(AB)+vec(BC)+vec(DA)+ve...

The value of `vec(AB)+vec(BC)+vec(DA)+vec(CD)`is

A

`vec(AD)`

B

`vec(CA)`

C

`vec0`

D

`-vec(AD)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • The value of |vec(a)+vec(b)|^(2)+|vec(a)-vec(b)|^(2) is

    A
    `2(absvec(a)^(2)+absvec(b)^(2))`
    B
    `4vec(a).vec(b)`
    C
    `2(absvec(a)^(2)-absvec(b)^(2))`
    D
    `4absvec(a)^(2)-absvec(b)^(2)`

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    A
    `2(vec(AB) + vec(AD))`
    B
    `4,vec(AC)`
    C
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    A
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    B
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