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General solution of tan5theta=cot2theta ...

General solution of `tan5theta=cot2theta` is `(npi)/7+pi/2^(\ ),\ n Z` b. `theta=(npi)/7+pi/3,\ n Z` c. `theta=(npi)/7+pi/(14), n Z` d. `theta=(npi)/7-pi/(14), n Z`

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Given `tan5theta=cot2theta`
⟹`tan5theta=tan(π/2​−2theta)`
...
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