Math Chapter Wise question with answer

Q01 Let B = 2 sin2 x–cos2x, then– English · KVS TGT DEC 2017 Q02 Let fk (x) = 1 k (sink x + cosk x) for k = 1, 2, 3... Then, for all x∈ R, the value of f4(x) – f6(x) is: English · EMRS PGT-2023 Q03 Let S be the sum of the first 10 terms of the series. tan–1 1 1 1 1 1 tan tan..... 3 7 13 − − + + + then, tan(S) is... English · EMRS PGT-2023 Q04 Let the angle A, B, C of ∆ ∆ ∆ABC be in A.P. and let b:c = 3: 2 then angle A is English · PGT 2005 Q05 The minimum value of 27cos2x. 81sin2x is English · GIC Lecturer Exam- 2015 Q06 If cos2 A + cos4 A = 1, then the value of the expression sinA + sin2 A is: English · EMRS TGT-2023