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

Last updated at Dec. 8, 2016 by Teachoo
Learn All Concepts of Chapter 2 Class 11 Relations and Function - FREE. Check - Trigonometry Class 11 - All Concepts
Transcript
Ex 3.3, 1 Prove that sin2 /6 + cos2 /3 tan2 /4 = 1/2 Taking L.H.S sin2 /6 + cos2 /3 - tan2 /4 Putting = 180 = sin2 180/6 + cos2 180/3 tan2 180/6 = sin2 30 + cos2 60 tan2 45 = (sin 30 )2 + ( sin 60 )2 (tan 45 )2 Putting sin 30 = 1/2 sin 60 = 1/2 tan 45 = 1 = (1/2)^2 + (1/2)^2 12 = 1/4+ 1/4 1 = (1 + 1 4 )/4 = (2 4 )/4 = ( 2)/4 = ( 1)/2 = R.H.S. Hence proved
Ex 3.3
Ex 3.3, 2 Important
Ex 3.3, 3 Important
Ex 3.3, 4
Ex 3.3, 5 Important
Ex 3.3, 6 Important
Ex 3.3, 7
Ex 3.3, 8 Important
Ex 3.3, 9 Important
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 Important
Ex 3.3, 23 Important
Ex 3.3, 24
Ex 3.3, 25
About the Author