Let us define the length of a vector ai^+bj^+ck^as∣a∣+∣b∣+∣c∣˙ This definition coincides with the usual definition of length of a vector ai^+bj^+ck^ is and only if a. a=b=c=0 b. any two of a,b,andc are zero c. any one of a,b,andc is zero d. a+b+c=0

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Let us define the length of a vector {a}{{i}}+{b}{{j}}+{c}{{k}

Question

Let us define the length of a vector $a \hat{i} + b \hat{j} + c \hat{k} a s ∣ a ∣ + ∣ b ∣ + ∣ c ∣ ˙$ This definition coincides with the usual definition of length of a vector $a \hat{i} + b \hat{j} + c \hat{k}$ is and only if a. $a = b = c = 0$ b. any two of $a, b, a n d c$ are zero c. any one of $a, b, a n d c$ is zero d. $a + b + c = 0$

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Let us define the length of a vector

a \hat{i} + b \hat{j} + c \hat{k} a s ∣ a ∣ + ∣ b ∣ + ∣ c ∣ ˙

This definition coincides with the usual definition of length of a vector

a \hat{i} + b \hat{j} + c \hat{k}

is and only if a.

a = b = c = 0

b. any two of

a, b, a n d c

are zero c. any one of

a, b, a n d c

is zero d.

a + b + c = 0

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