Ex 7.1, 20 - Integrate (2 - 3sinx)/cos2x dx - Using Trignometric Formulaes

  1. Class 12
  2. Important Question for exams Class 12
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Ex 7.1, 20 ﷮﷮ 2 − 3 sin﷮𝑥 ﷯﷮ cos﷮2﷯﷮𝑥﷯﷯﷯ 𝑑𝑥 ﷮﷮ 2 − 3 sin﷮𝑥 ﷯﷮ cos﷮2﷯﷮𝑥﷯﷯﷯ 𝑑𝑥 = ﷮﷮ 2 ﷮ cos﷮2﷯﷮𝑥﷯﷯ − 3 sin﷮𝑥﷯﷮ cos﷮2﷯﷮𝑥﷯﷯﷯﷯𝑑𝑥 = ﷮﷮ 2 sec﷮2﷯﷮𝑥﷯− 3 sin﷮𝑥﷯﷮ cos﷮𝑥﷯﷯ . 1﷮ cos﷮𝑥﷯﷯﷯﷯𝑑𝑥 = ﷮﷮ 2 sec﷮2﷯﷮𝑥﷯−3 tan﷮𝑥﷯ . sec﷮𝑥﷯﷯﷯𝑑𝑥 =2 ﷮﷮ sec﷮2﷯﷮𝑥﷯﷯𝑑𝑥−3 ﷮﷮ tan﷮𝑥﷯ sec﷮𝑥﷯﷯﷯𝑑𝑥 =𝟐 𝐭𝐚𝐧﷮𝒙﷯−𝟑 𝐬𝐞𝐜﷮𝒙﷯+𝑪

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