Solved

Let r(t)=ecosti+tantj+cos(5t)k\mathbf { r } ( t ) = e ^ { \cos t } \mathbf { i } + \tan t \mathbf { j } + \cos ( 5 - t ) \mathbf { k }

Question 34

Multiple Choice

Let r(t) =ecosti+tantj+cos(5t) k\mathbf { r } ( t ) = e ^ { \cos t } \mathbf { i } + \tan t \mathbf { j } + \cos ( 5 - t ) \mathbf { k } Then r(t) \mathbf { r } ^ { \prime } ( t ) is


A) sintecosti+sec2tj+sin(5t) k\sin t e ^ { \cos t } \mathbf { i } + \sec ^ { 2 } t \mathbf { j } + \sin ( 5 - t ) \mathbf { k }
B) sintecosti+sec2tj+sin(5t) k- \sin t e ^ { \cos t } \mathbf { i } + \sec ^ { 2 } t \mathbf { j } + \sin ( 5 - t ) \mathbf { k }
C) sintecostisec2tj+sin(5t) k- \sin t e ^ { \cos t } \mathbf { i } - \sec ^ { 2 } t \mathbf { j } + \sin ( 5 - t ) \mathbf { k }
D) sintecostisec2tj+sin(5t) k\sin t e ^ { \cos t } \mathbf { i } - \sec ^ { 2 } t \mathbf { j } + \sin ( 5 - t ) \mathbf { k }
E) sintecosti+sec2tjsin(5t) k\sin t e ^ { \cos t } \mathbf { i } + \sec ^ { 2 } t \mathbf { j } - \sin ( 5 - t ) \mathbf { k }

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions