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JEE Advanced (IIT-JEE)

Trigonometry

No official chapter weightage

Trigonometric functions and their graphs, the addition and multiple-angle formulae, trigonometric equations, and inverse trigonometric functions.

sin⁡(A±B)=sin⁡Acos⁡B±cos⁡Asin⁡B,cos⁡2A=1−2sin⁡2A\sin(A \pm B) = \sin A\cos B \pm \cos A\sin B, \quad \cos 2A = 1 - 2\sin^2 A

What this unit covers

  • Trigonometric functions: periodicity and graphs

  • Addition and subtraction formulae; multiple and sub-multiple angle formulae

  • General solution of trigonometric equations

  • Inverse trigonometric functions (principal value only) and their elementary properties

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