If ^ -1 (x + 1) + ^ -1 x + ^ -1 (x - 1) = ^ -1 3, then for x < 0 the value of 500x^4 + 270x^2 + 997 =

MHT CET 2025 Mathematics question

If , then for the value of

Answer: (B)

Take tangent of both sides and use . With : , , . So . Test

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Question ID VK-102739