The values of $\mathrm{x}$ in $0\le \mathrm{x}\le \mathrm{\pi }$ such that $\cos 2\mathrm{x}=\mathrm{cosx}$ are

Important Questions on Trigonometric Equations and Inequations

MEDIUM

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 6 - Trigonometric Equations and Inequations>KEAM 2020>Q 6

If $\mathrm{tanx}+\mathrm{tany}=\frac{5}{6}$ and $\mathrm{cotx}+\mathrm{coty}=5$, then $\tan (\mathrm{x}+\mathrm{y})$ is

MEDIUM

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 6 - Trigonometric Equations and Inequations>KEAM 2020>Q 7

$\frac{\sin 91°+\sin 1°}{\sin 91°-\sin 1°}=$

EASY

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 6 - Trigonometric Equations and Inequations>KEAM 2019>Q 8

If $x\in [0,2\pi ],y\in [0,2\pi ]$ and $\sin x+\sin y=2$ then the value of $x+y$ is

EASY

KEAM

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 6 - Trigonometric Equations and Inequations>KEAM 2019>Q 9

The number of solutions of $\sum _{r=1}^4\cos rx=4$ in the interval $[0,2\pi ]$ is