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Provide an Appropriate Response cscx=1x+x6+7x3360+31x515120+\csc x = \frac { 1 } { x } + \frac { x } { 6 } + \frac { 7 x ^ { 3 } } { 360 } + \frac { 31 x ^ { 5 } } { 15120 } + \ldots

question 75

Multiple Choice

Provide an appropriate response.
-Use the fact that cscx=1x+x6+7x3360+31x515120+\csc x = \frac { 1 } { x } + \frac { x } { 6 } + \frac { 7 x ^ { 3 } } { 360 } + \frac { 31 x ^ { 5 } } { 15120 } + \ldots (for x<π) \left. | x | < \pi \right) to find the first four terms of the series for 2 csc(2x) (\csc ( 2 x ) \left( \right. for x<π2) \left. | x | < \frac { \pi } { 2 } \right) and thus for lntanx\ln \tan x .


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