Learn All Concepts of Chapter 2 Class 11 Relations and Function - FREE. Check - Trigonometry Class 11 - All Concepts

Last updated at Feb. 12, 2020 by Teachoo

Learn All Concepts of Chapter 2 Class 11 Relations and Function - FREE. Check - Trigonometry Class 11 - All Concepts

Transcript

Example 7 If cotβ‘π₯ = β 5/12 , x lies in second quadrant, find the values of other five trigonometric functions. Since x lies in llnd Quadrant Where cos x and tan x will be negative But sin x will be Positive We know that 1 + cot2x = cosec2 x 1 + ((β5)/12)^2 = cosec2 x 1 + 25/144 = cosec2 x (144 + 25)/144 = cosec2 x 169/144 = cosec2x cosec2 x = 169/144 cosec2 x = 169/144 cosec x = Β± β(169/144) cosec x = Β± 13/12 As x is in llnd Quadrant, sin x is positive in llnd Quadrant, β΄ cosec x is positive in llnd Quadrant β΄ cosec x = ππ/ππ sin x = 1/cosππβ‘π₯ = 1/(13/12) = ππ/ππ tan x = 1/(πππ‘ π₯) = 1/((β5)/12) = (βππ)/π tan x = sinβ‘π₯/cosβ‘π₯ cos x = sinβ‘π₯/tanβ‘π₯ = 12/13 Γ (β5)/12 = (βπ)/ππ

Examples

Example 1

Example 2

Example 3

Example 4

Example 5 Important

Example 6 Important

Example 7 Important You are here

Example 8

Example 9 Important

Example 10

Example 11 Important

Example 12

Example 13

Example 14

Example 15

Example 16 Important

Example 17 Important

Example 18

Example 19 Important

Example 20 Not in Syllabus - CBSE Exams 2021

Example 21 Not in Syllabus - CBSE Exams 2021

Example 22 Important Not in Syllabus - CBSE Exams 2021

Example 23 Not in Syllabus - CBSE Exams 2021

Example 24 Important Not in Syllabus - CBSE Exams 2021

Example 25 Important

Example 26 Important

Example 27 Important

Example 28 Important

Example 29 Important

Chapter 3 Class 11 Trigonometric Functions

Serial order wise

About the Author

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.