The value of ^ -1 (- 1 2 ) + ^ -1 (- 1 2 ) - ^ -1 (- 1 3 ) + ^ -1 (- 3 )

MHT CET 2025 Mathematics question

The value of

Answer: (D)

Using , the first two terms give (indeed ). With principal range , , so the third term contributes . The last term has magnitude : taken literally as

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Question ID VK-100640