Math Chapter Wise question with answer

Q01 0 0 sin50 cos80 cos30 sin20 − is equal to English · PGT 2010 Q02 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 Q03 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 Q04 1 1 cos 2sin 2 2 is equal to– English · KVS TGT 2017 Q05 2 + 2 + 2 + 2cos8θ is equal to English · UP TGT 2021 Q06 If cos(θ + φ) = mcos (θ – φ), then φ 1 – m cot 1+ m is equal to: English · Haryana PGT 2019