For m≠n, if tan⁡mθ=tan⁡nθ, then different values ofθ are in 

For mn, if tanmθ=tannθ, then different values ofθ are in 

  1. A

    AP.

  2. B

    H.P

  3. C

    G.P

  4. D

    no particular sequence

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    Solution:

    We have

    tanmθ=tannθ mθ=rπ+nθ, where rZ θ=rπmn,rZ

    Clearly, these values of θfrom an A.P. with common difference πmn

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