Math Chapter Wise question with answer

Q01 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 Q02 If cos(α + β) = 4 5 and sin (α – β) = 5, 13 where 0 ≤ α, β ≤ ' 4 π then tan 2α is equal to: English · EMRS PGT-2023 Q03 o o cos30 sin30 cos30 sin30 − + is equal to: English · NVS PGT 2022 Q04 1 1 cos 2sin 2 2 is equal to– English · KVS TGT 2017 Q05 If cos(θ + φ) = mcos (θ – φ), then φ 1 – m cot 1+ m is equal to: English · Haryana PGT 2019 Q06 If tanA = n tan B and sin A = m sin B, then cos2 A is equal to: English · Haryana TGT 2019