# Precalculus: trigonometry questions and answers

Recent questions in Trigonometry
Armorikam 2021-08-15 Answered

### Find the exact value of the expression $$\displaystyle{\tan{{\left({\frac{{{4}\pi}}{{{3}}}}-{\frac{{\pi}}{{{4}}}}\right)}}}$$

remolatg 2021-08-15 Answered

### Use the fundamental identities to find the value of the trigonometric function Find $$\displaystyle{\csc{\theta}}$$, given that $$\displaystyle{\sin{\theta}}=-{23}$$ and $$\displaystyle\theta$$ is in quadrant 4.

amanf 2021-08-15 Answered

### Rewrite the following expression involving trigonometry and inverse trigonometry as an algebraic expression in x. $$\displaystyle{\cos{{\left({2}{{\sin}^{{-{1}}}{x}}\right)}}}$$

djeljenike 2021-08-14 Answered

### Is the statement True or False? Exact values can be found for the sine of any angle.

allhvasstH 2021-08-14 Answered

### Solve the equation: $$\displaystyle{{\tan}^{{2}}{x}}-{3}{\tan{{x}}}-{4}={0}$$

Marvin Mccormick 2021-08-14 Answered

### Find all solution of the equation in the interval $$\displaystyle{\left[{0},{2}\pi\right]}$$. $$\displaystyle{\sin{{2}}}{x}{\left({\csc{{2}}}{x}-{2}\right)}={0}$$

ringearV 2021-08-14 Answered

### Find 6 - trigonometry function value of $$\displaystyle\theta={\frac{{{3}\pi}}{{{2}}}}$$

Chaya Galloway 2021-08-14 Answered

### Use the unit circle to evaluate the six trigonometric functions of: a) $$\displaystyle{90}^{\circ}$$ b) $$\displaystyle{180}^{\circ}$$

ossidianaZ 2021-08-13 Answered

### Two sides and an angle of a triangle are given. Help to determine whether the given measurements produce triangle, two triangles, or no triangle. Round to the nearest tenth and the nearest degree for sides and angles. $$\displaystyle{a}={6.1},{b}={4},{A}={162}°$$

glamrockqueen7 2021-08-13 Answered

### If $$\displaystyle{0}\leq\theta{<}{2}\pi$$ and $$\displaystyle{1}-{7}{\cos{\theta}}={8}$$, determine the values of $$\displaystyle\theta$$

Jason Farmer 2021-08-13 Answered

### Simplify the trigonometric identity. There should be no division signs in the answer. $$\displaystyle{\frac{{{\cos{\theta}}+{1}}}{{{1}+{\sec{\theta}}}}}$$

EunoR 2021-08-13 Answered

### Use the following conditions to find the exact value of $$\displaystyle{\tan{{\left(\alpha-\beta\right)}}}$$ $$\displaystyle{\sin{\alpha}}={\frac{{{4}}}{{{5}}}},{\frac{{\pi}}{{{2}}}}{<}\alpha{<}\pi$$ $$\displaystyle{\cos{\beta}}={\frac{{{5}}}{{{13}}}},{0}{<}\beta{<}{\frac{{\pi}}{{{2}}}}$$

Tazmin Horton 2021-08-13 Answered

### Find the exact value of the expression $$\displaystyle{\tan{{\left[{{\cos}^{{-{1}}}{\left(-{\frac{{\sqrt{{{3}}}}}{{{2}}}}\right)}}\right]}}}$$ Do not use a calculator.

rocedwrp 2021-08-13 Answered

### If $$\displaystyle{\sec{\theta}}+{\tan{\theta}}={x}$$, obtain the values of $$\displaystyle{\sec{\theta}},{\tan{\theta}}$$ and $$\displaystyle{\sin{\theta}}$$.

Anonym 2021-08-13 Answered

### USe the trigonometric identites that we went over in class to write the following trigonometric expression in its most reduced form $$\displaystyle{{\cos}^{{2}}{\left({5}{x}\right)}}$$

geduiwelh 2021-08-13 Answered

### Rewrite the expression as a sum or difference, then simplify if possible. $$\displaystyle{8}{\sin{{7}}}{x}{\cos{{4}}}{x}$$

geduiwelh 2021-08-13 Answered

### Use the Cofunction Theorem to fill in the blank so that the expression becomes a true statement. $$\displaystyle{\sec{{y}}}={\csc{}}$$

naivlingr 2021-08-13 Answered

### Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. r = 14 feet, s = 8 feet.

facas9 2021-08-13 Answered

### Find exact value of $$\displaystyle{\cos{{\left({\frac{{{9}\pi}}{{{4}}}}\right)}}}$$ How do you get $$\displaystyle{\left({\frac{{\pi}}{{{4}}}}+{2}\pi\right)}$$

cistG 2021-08-12 Answered

### Simplify the expression: $$\displaystyle{\sin{{\left({{\tan}^{{-{1}}}{x}}\right)}}}$$

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.

Remember that Trigonometry requires patience and analysis. By following your analysis skills, you will help yourself find the answers. If something remains unclear, start with your exploration of examples again and go step-by-step.

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