# Practice Exercises for Trigonometry

Recent questions in Trigonometry
Monverdeitum 2023-03-27

## What is the derivative of ${\mathrm{cot}}^{2}x$ ?

Junior Hess 2023-03-27

## How to evaluate $\mathrm{sin}\left(\frac{-5\pi }{4}\right)$?

Zachariah Ferrell 2023-03-26

## How to verify the identity: $\frac{\mathrm{cos}\left(x\right)-\mathrm{cos}\left(y\right)}{\mathrm{sin}\left(x\right)+\mathrm{sin}\left(y\right)}+\frac{\mathrm{sin}\left(x\right)-\mathrm{sin}\left(y\right)}{\mathrm{cos}\left(x\right)+\mathrm{cos}\left(y\right)}=0$?

Daisy Hatfield 2023-03-26

## Find $\mathrm{tan}\left(22.{5}^{\circ }\right)$ using the half-angle formula.

Joslyn Landry 2023-03-25

## The solution set of $\mathrm{tan}\theta =3\mathrm{cot}\theta$ is

atentan4t9j 2023-03-25

## How do I find the value of sec(3pi/4)?

Trey Montes 2023-03-25

## How to find the exact values of $\mathrm{cos}22.5°$ using the half-angle formula?

Keegan Stevens 2023-03-25

## How to express the complex number in trigonometric form: 5-5i?

Lacey Cordova 2023-03-24

## How to find the value of $\mathrm{csc}90$?

taxiereneo5k 2023-03-24

## Two lines perpendicular to a same line are parallel. A. True B. False

Pieszkowo3gc4 2023-03-24

## How many diagonals are there in a nonagon? A.24B.16C.18 D.27

Kira Yoder 2023-03-23

## How to find the exact value of tan(5pi/3)?

Eliza Shields 2023-03-23

## How to do inverse cosine?

Beckett Aguirre 2023-03-23

## If tan x=11/r and cos x=r/s what is the value of sin x?

zookeeper1930r8k 2023-03-22

## Find the value of the trigonometric functions of sin (−11π/3).

caigis72da 2023-03-22

## How to find the value of $\mathrm{csc}\left(\frac{5\pi }{4}\right)$?

Abraham Reilly 2023-03-22

## $\left(\mathrm{sin}4\theta \right)$ can be written as:A) $4\mathrm{sin}\theta \left(1-2{\mathrm{sin}}^{2}\theta \right)\left(\sqrt{1-{\mathrm{sin}}^{2}\theta }\right)$B) $2\mathrm{sin}\theta \mathrm{cos}\theta {\mathrm{sin}}^{2}\theta$ C) $4\mathrm{sin}\theta –6{\mathrm{sin}}^{3}\theta$ D) None of these

Sawyer Burch 2023-03-22

## What is the value of $1+\mathrm{sin}\left(2x\right)$?

Annabel Zamora 2023-03-20

## Two line segments are said to be congruent if they have __.

Talon Cannon 2023-03-18

## How to I find the value of tan 225?

The majority of Trigonometry Math problems are quite easy to solve when you have the list of answers that help you see the logic and reasoning. Looking at various examples will help you to see how certain questions are related to provided solutions.