Chapter 3 Class 11 Trigonometric Functions
Ex 3.1, 2 (i)
Ex 3.2, 7 Important
Ex 3.2, 8
Ex 3.2, 9 Important
Ex 3.3, 4
Ex 3.3, 5 (i) Important You are here
Ex 3.3, 8 Important
Ex 3.3, 11 Important
Ex 3.3, 18 Important
Ex 3.3, 23 Important
Ex 3.3, 21 Important
Question 7 Important
Question 4 Important
Question 8 Important
Question 9 Important
Example 20 Important
Example 21 Important
Misc 4 Important
Misc 7 Important
Chapter 3 Class 11 Trigonometric Functions
Last updated at April 16, 2024 by Teachoo
Ex 3.3, 5 Find the value of: sin 75° sin 75° = sin (45° + 30°) = sin 45° cos 30° + cos 45° sin 30° = 𝟏/√𝟐 × √𝟑/𝟐 + 𝟏/√𝟐 × 𝟏/𝟐 = 1/√2 (√3/2 " + " 1/2) = (√𝟑 + 𝟏)/(𝟐√𝟐)