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Let xcosy=5x \cos y = 5 If dxdt=4\frac { d x } { d t } = - 4

Question 149

Multiple Choice

Let xcosy=5x \cos y = 5 If dxdt=4\frac { d x } { d t } = - 4 when y=π3,y = - \frac { \pi } { 3 } , then dydt\frac { d y } { d t } is


A) 2153- \frac { 2 } { 15 } \sqrt { 3 }
B) 215- \frac { 2 } { 15 }
C) 215\frac { 2 } { 15 }
D) 2153\frac { 2 } { 15 } \sqrt { 3 }
E) 253\frac { 2 } { 5 } \sqrt { 3 }

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