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If cosec theta = (x^(2) -y^(2))/(x^(2) +...

If `cosec theta = (x^(2) -y^(2))/(x^(2) + y^(2))` where x, y are two unequal non-zero real numbers then prove that `theta` has no real value.

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The correct Answer is:
Hence, there is no real value of `theta`.
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