1 General Mental and Psychological Abilities · 1.4.2 Geometry and trigonometry

1.4.2.7 Trigonometry basics: ratios, standard angles and identities

Learn the six ratios as sides of a right triangle, the value table for 0°, 30°, 45°, 60° and 90°, the three squared identities and the complementary-angle swap; almost every aptitude trigonometry question is one of these in disguise.

  • APPSC Group 1
  • Advanced level
  • 6 min read
  • Full course

Key terms

  • sine
  • cosine
  • tangent
  • cosecant
  • secant
  • cotangent
  • standard angles
  • complementary angles
  • Pythagorean identities
  • sec plus tan
  • maximum and minimum values
  • radian

What this note covers

  1. Core factsFoundation
  2. ExplainedStandard
  3. DeeperAdvanced
  4. Common trapsFoundation
  5. Quick revisionFoundation

Read the full note in the app. It is part of the APPSC Group 1 full course in Medha AI. Free in the app: the first chapter of each topic.

Read the full note in the app General Mental and Psychological Abilities questions with answers

All Geometry and trigonometry notes · APPSC Group 1 syllabus · APPSC G1 Paper I Mock 1 with answers · Start free

Medha AI writes its own notes and checks them against the sources listed. Medha AI is an independent preparation service. It is not affiliated with, endorsed by or connected to APPSC, TSPSC, MPSC, UPSC or any other commission or government body.