Math Chapter Wise question with answer

Q01 If 5(tan2 x – cos2 x) = 2cos 2x + 9, then he value of cos 4x is: English · EMRS PGT-2023 Q02 The value of the expression sin6 θ cos6 θ + 3sin2 θ cos2 θ is English · Bihar (TRE 2.0)-2023 Q03 If cos2 A + cos4 A = 1, then the value of the expression sinA + sin2 A is: English · EMRS TGT-2023 Q04 Value of cos20° cos40° cos60° cos80° is: English · KVS PGT 2023 Q05 What is the value of the expression given below? cos1º.cos2º.cos3º.cos4º.........cos90º English · DSE TGT 2022 Q06 If sin4 a – cos4 a = 1/3 then what is the value of 1–2cos2 a? English · OAVS TGT 2019