JEE Main · Maths · Trigonometric Functions
Fourth Power Identity Application
JEE Main asked Fourth Power Identity Application 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2021. It belongs to General Solutions, in Trigonometric Functions (Maths). The longest wait between two years asking it was 1 year.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2020
- last in 2021
- Pattern
- Gone quiet
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2020 and 2021. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Maths questions.
Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 0 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Numerical value is the usual form. Skill tested: multi-step.
- Sum of trig equation solutions in interval
- Range of parameter for solvable trig equation
Difficulty
1 of the 2 questions had a numerical answer.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 27 Aug 2021, Shift 2 · Q89Let S be the sum of all solutions (in radians) of the equation in .…MediumNumerical value
- 2 Sep 2020, Shift 2 · Q69If the equation has real solutions for , then lies in the interval :MediumSingle correct
Shifts: 2 Sep 2020, Shift 2, 27 Aug 2021, Shift 2.
Same topic
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- Quadratic Substitution in Trigonometry12× · 2025
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- Sine General Solutiononce · 2026
- Cosine General Solutiononce · 2025
- Multiple Angle Equatingonce · 2025
- Factorization Methodonce · 2024
- Linear Combination Solutiononce · 2024
- AM-GM Inequality Bounds in Trig Equationsonce · 2022
- Domain Restricted Solutionsonce · 2022