RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 4. Inverse Trigonometric Functions

Subject: Maths - Class 12th

Q. No. 7 of Very short answer

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7

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the value of for x < 0.


Given tan-1 x + tan-1 (1/x) for x < 0


We know that if x<0, y<0




= -π + tan-1 (∞)


= -π + π/2


= -π/2


tan-1 x + tan-1 (1/x) = -π/2


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