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What is sin (90 - A) cos (90 - A) equal to?

Last updated at May 29, 2018 by

Trigonometric Ratios of complementary angles are

  1. sin (90° − θ) = cos θ
  2. cos (90° − θ) = sin θ
  3. tan (90° − θ) = cot θ
  4. cot (90° − θ) = tan θ
  5. sec (90° − θ) = cosec θ
  6. cosec (90° − θ) = sec θ

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.