NCERT Exemplar
NCERT Exemplar Class 11 Maths Chapter 3 Trigonometric Functions
NCERT Exemplar Class 11 Maths Chapter 3 Trigonometric Functions Q4. If cos (α + ) =4/5 and sin (α- )=5/13 , where α lie between 0 and π/4, then find the value of tan 2α. Q6. Prove that cos cos /2- cos 3 cos 9/2 = sin 7/2 sin 4 . Read more…