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Tamil Nadu Board of Secondary EducationHSC Science Class 11
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Concept Notes158
Syllabus

Choose the correct alternative:If tan 40° = λ, then tan140∘-tan130∘1+tan140∘⋅ tan130∘ = - Mathematics

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Question

Choose the correct alternative:
If tan 40° = λ, then `(tan 140^circ - tan 130^circ)/(1 + tan 140^circ *  tan 130^circ)` =

Options

  • `(1 - lambda^2)/lambda`

  • `(1 + lambda^2)/lambda`

  • `(1 + lambda^2)/(2lambda)`

  • `(1 - lambda^2)/(2lambda)`

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Solution

`(1 - lambda^2)/(2lambda)`

shaalaa.com
Trigonometric Equations
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Q 6
Chapter 3: Trigonometry - Exercise 3.12 [Page 150]

APPEARS IN

Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 3 Trigonometry
Exercise 3.12 | Q 6 | Page 150

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