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Friday, 9 October

JEE Main Maths · Trigonometric Functions

Triple Angle Formulas

Triple Angle Formulas (Trigonometric Functions) was asked once in the 42 JEE Main shifts Lumi analysed, in 2023.

Times asked
1
in 1 shift
Years
2023
Usual format
Single correct
Application
Pattern
Occasional
asked once so far

How it is asked

  • Simplify trigonometric product to constant

Difficulty

Easy 0Medium 0Hard 1

Where it sits

Chapter: Trigonometric Functions. Topic: Trigonometric Identities, 14 questions over 12 ideas.

Other repeat ideas in this topic

Every time it came

The question

Newest first, each with its options and official answer.

  1. 8 Apr 2023, Shift 2 · Q19The value of 36(4cos⁡29∘−1)(4cos⁡227∘−1)(4cos⁡281∘−1)(4cos⁡2243∘−1)36(4\cos^2 9^\circ - 1)(4\cos^2 27^\circ - 1)(4\cos^2 81^\circ - 1)(4\cos^2 243^\circ - 1) isHardSingle correct