Solved

Find the Tangent Vector r\mathbf { r } ^ { \prime }

Question 9

Multiple Choice

Find the tangent vector r\mathbf { r } ^ { \prime } (t) of the function r (t) = sin 2t i - cos 2t j when t = π6\frac { \pi } { 6 } .


A) 12i+32j\frac { 1 } { 2 } \mathbf { i } + \frac { \sqrt { 3 } } { 2 } \mathbf { j }

B) 12i32j\frac { 1 } { 2 } \mathbf { i } - \frac { \sqrt { 3 } } { 2 } \mathbf { j }
C) i+3j\mathbf { i } + \sqrt { 3 } \mathbf { j }
D) i3j- \mathbf { i } - \sqrt { 3 } \mathbf { j }
E) 32i+12j\frac { \sqrt { 3 } } { 2 } \mathbf { i } + \frac { 1 } { 2 } \mathbf { j }
F) 32i12j\frac { \sqrt { 3 } } { 2 } \mathbf { i } - \frac { 1 } { 2 } \mathbf { j }

G) 3i+j- \sqrt { 3 } \mathbf { i } + \mathbf { j }

H) 3ij- \sqrt { 3 } \mathbf { i } - \mathbf { j }

Correct Answer:

verifed

Verified

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

Related Questions