Ex 3.3, 7 - Chapter 3 Class 11 Trigonometric Functions
Last updated at Dec. 8, 2016 by Teachoo
Transcript
Ex 3.3, 7 Prove that: (tan"(" π/4 " + " π₯")" )/(tan"(" Ο/4 " β " π₯")" ) = ((1+ tan" " π₯)/(1β tan" " π₯))^2 Solving L.H.S. (tanβ‘ (π/4 + π₯) )/tanβ‘(π/4 β π₯) Calculating L.H.S tanβ‘γ(π/4 + π₯)γ/tanβ‘γ( π/4 βπ₯)γ = ((1 + π‘ππβ‘π₯)/(1β π‘ππβ‘π₯ ))/((1 β tanβ‘x)/(1 + tanβ‘x )) = (1 + π‘ππβ‘π₯)/(1β π‘ππβ‘π₯ ) Γ (1 + π‘ππβ‘π₯)/(1β π‘ππβ‘π₯ ) = (1 + π‘ππβ‘π₯ )2/((1β π‘ππβ‘γπ₯)2γ ) = R.H.S Hence proved
Ex 3.3
Ex 3.3, 1
Ex 3.3, 2
Ex 3.3, 3
Ex 3.3, 4 Important
Ex 3.3, 5 Important
Ex 3.3, 6
Ex 3.3, 7 You are here
Ex 3.3, 8 Important
Ex 3.3, 9
Ex 3.3, 10
Ex 3.3, 11 Important
Ex 3.3, 12
Ex 3.3, 13
Ex 3.3, 14
Ex 3.3, 15
Ex 3.3, 16
Ex 3.3, 17
Ex 3.3, 18 Important
Ex 3.3, 19
Ex 3.3, 20
Ex 3.3, 21 Important
Ex 3.3, 22
Ex 3.3, 23 Important
Ex 3.3, 24
Ex 3.3, 25
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.