Math Chapter Wise question with answer

Q01 The number of real solutions of the equation 1 1 cos2x 2cos (cosx) − + = + = in, 2 π is: English · KVS PGT 23-12-2018 Q02 In a ∆ ∆ ∆ABC, if a = 2, B = tan–1 1 2 and C = tan–1 1, 3 then (A, b) is equal to: English · EMRS PGT-2023 Q03 If the area of an equilateral triangle inscribed in the circle x2 +y2 + 10x + 12y + c = 0 is 27 3 sq. units, then c... English · EMRS PGT-2023 Q04 If sin (sin-1 1 4 + cos-1 x) = 1, then the value of x is: English · KVS PGT 2023 Q05 If tan-1 x + tan-1 y = 2 5 π, then cot-1 x + cot-1 y is: English · KVS PGT 2023 Q06 The value of tan-1 cosx 1-sinx is: English · KVS PGT 2023