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Evaluate the Integral (e9ti+14tj+lntk)dt\int \left( e ^ { 9 t } \mathbf { i } + 14 t \mathbf { j } + \ln t \mathbf { k } \right) d t

Question 83

Multiple Choice

Evaluate the integral. (e9ti+14tj+lntk) dt\int \left( e ^ { 9 t } \mathbf { i } + 14 t \mathbf { j } + \ln t \mathbf { k } \right) d t


A) e9t9i+7t2j+t(lnt1) k+C\frac { e ^ { 9 t } } { 9 } \mathbf { i } + 7 t ^ { 2 } \mathbf { j } + t ( \ln t - 1 ) \mathbf { k } + C
B) e9ti+7t2j+(lnt1) k+Ce ^ { 9 t } \mathbf { i } + 7 t ^ { 2 } \mathbf { j } + ( \ln t - 1 ) \mathbf { k } + \mathrm { C }
C) e9t9i+7t2j+t(lnt+9) k+C\frac { e ^ { 9 t } } { 9 } \mathbf { i } + 7 t ^ { 2 } \mathbf { j } + t ( \ln t + 9 ) \mathbf { k } + C
D) e9t9i7t2j+t(lnt+1) k+C\frac { e ^ { 9 t } } { 9 } \mathbf { i } - 7 t ^ { 2 } \mathbf { j } + t ( \ln t + 1 ) \mathbf { k } + C
E) e9ti7t2j+(lnt1) k+Ce ^ { 9 t } \mathbf { i } - 7 t ^ { 2 } \mathbf { j } + ( \ln t - 1 ) \mathbf { k } + \mathrm { C }

Correct Answer:

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