The general solution of $\cos 2x-2\tan x+2=0$ is

Important Questions on Trigonometric Equations

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 4 - Trigonometric Equations>TS EAMCET 2021 (04-Aug Shift-1)>Q 4

If $\cos \theta =-\frac{1}{\sqrt{2}}$ and $\tan \theta =1,$ then the general value of $\theta$ is

EASY

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 4 - Trigonometric Equations>TS EAMCET 2021 (04-Aug Shift-2)>Q 5

The value of $\left(1-\mathrm{cos\theta }\right)\left(1+\mathrm{cos\theta }\right)\left(1+{\cot }^2\mathrm{\theta }\right)$, when $\theta =\frac{\pi }{15}$ is

EASY

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 4 - Trigonometric Equations>TS EAMCET 2021 (04-Aug Shift-2)>Q 6

The number of solutions of the equation $\tan \theta +\sec \theta =2\cos \theta$ and $\cos \theta \ne 0$  lying in the interval $\left(0,2\pi \right)$ is

HARD

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IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 4 - Trigonometric Equations>TS EAMCET - 5 August 2021 Shift 1>Q 7

If $6\cos 2\theta +2{\cos }^2\left(\frac{\theta }{2}\right)+2{\sin }^2\theta =0, -\pi <\theta <\pi ,$ then $\theta =$

MEDIUM

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Chapter 4 - Trigonometric Equations>TS EAMCET - 5 August 2021 Shift 2>Q 8

The number of values of $x$ satisfying $\sin 4x=\cos 3x$ and $\frac{-\pi }{6}<x<\frac{\pi }{2},$ is