Find the length of the indicated portion of the curve.
-$$r ( t ) = ( 1 + 2 t ) \mathbf { i } + ( 1 + 4 t ) \mathbf { j } + ( 5 - 5 t ) \mathbf { k } , - 1 \leq t \leq 0$$
A) $2 \sqrt { 5 }$
B) $\sqrt { 29 }$
C) $3 \sqrt { 5 }$
D) $\sqrt { 41 }$

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The Answer of Find the length of the indicated portion of the curve.
-$$r ( t ) = ( 1 + 2 t ) \mathbf { i } + ( 1 + 4 t ) \mathbf { j } + ( 5 - 5 t ) \mathbf { k } , - 1 \leq t \leq 0$$
A) $2 \sqrt { 5 }$
B) $\sqrt { 29 }$
C) $3 \sqrt { 5 }$
D) $\sqrt { 41 }$

Find the Length of the Indicated Portion of the Curve r(t)=(1+2t)i+(1+4t)j+(5−5t)k,−1≤t≤0r ( t ) = ( 1 + 2 t ) \mathbf { i } + ( 1 + 4 t ) \mathbf { j } + ( 5 - 5 t ) \mathbf { k } , - 1 \leq t \leq 0r(t)=(1+2t)i+(1+4t)j+(5−5t)k,−1≤t≤0

Find the Length of the Indicated Portion of the Curve $r ( t ) = ( 1 + 2 t ) \mathbf { i } + ( 1 + 4 t ) \mathbf { j } + ( 5 - 5 t ) \mathbf { k } , - 1 \leq t \leq 0$