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

question 39

Multiple Choice

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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