Math Chapter Wise Trigonometrical Identities And Circular Function English MCQ Haryana TGT 2020 Q.If A = cos2 θ + sin4 θ, then for all values of θ is: A3 A 1 4 ≤ B3 13 A 4 16 ≤ C1 A 2/≤ D13 A 1 16 ≤ Show answer Correct answer: 3 A 1 4 ≤