sir help with this one

Asked by vt2008 | 9th Sep, 2010, 05:11: PM

Expert Answer:

Dear Student,
The second last step involves the term pi/6 with a negative sign and the exponent to (-1) is n. Now in the last step, the negative sign of pi/6 is multiplied to (-1) to the power n. this made the exponent of (-1) equal to n+1.
Regards Topperlearning.

Answered by  | 9th Sep, 2010, 05:19: PM

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