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Find r(t)\mathbf { r } ( t ) If r(t)=sinticostj+6tk\mathbf { r } ^ { \prime } ( t ) = \sin t \mathbf { i } - \cos t \mathbf { j } + 6 t \mathbf { k }

Question 27

Multiple Choice

Find r(t) \mathbf { r } ( t ) if r(t) =sinticostj+6tk\mathbf { r } ^ { \prime } ( t ) = \sin t \mathbf { i } - \cos t \mathbf { j } + 6 t \mathbf { k } and r(0) =i+j+5kr ( 0 ) = i + j + 5 k .


A) (cost+2) i+(sint1) j+(3t2+5) k( - \cos t + 2 ) \mathbf { i } + ( \sin t - 1 ) \mathbf { j } + \left( 3 t ^ { 2 } + 5 \right) \mathbf { k }
B) (cost) i+(sint1) j+(3t2+5) k( \cos t ) \mathbf { i } + ( \sin t - 1 ) \mathbf { j } + \left( 3 t ^ { 2 } + 5 \right) \mathbf { k }
C) (cost) i+(sint+1) j+(3t2+5) k( \cos t ) \mathbf { i } + ( \sin t + 1 ) \mathbf { j } + \left( 3 t ^ { 2 } + 5 \right) \mathbf { k }
D) (cost+2) i(sint1) j+(3t2+5) k( - \cos t + 2 ) \mathbf { i } - ( \sin t - 1 ) \mathbf { j } + \left( 3 t ^ { 2 } + 5 \right) \mathbf { k }
E) (cost+1) i(sint1) j+(3t2+5) k( - \cos t + 1 ) \mathbf { i } - ( \sin t - 1 ) \mathbf { j } + \left( 3 t ^ { 2 } + 5 \right) \mathbf { k }

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