# High school trigonometry questions and answers

Recent questions in Trigonometry
Nannie Mack 2020-10-28

### Solve the equation $\frac{1-\mathrm{sin}x}{1+\mathrm{sin}x}=\left(\mathrm{sec}x-\mathrm{tan}x{\right)}^{2}$

opatovaL 2020-10-28

### Given tanx is $\frac{3}{4}$. you can use the double formula to find $\mathrm{tan}2x$. the teacher wants us to find 3 other doubles like $\mathrm{sin}2x$ or $\mathrm{cos}2x$ without using the double angle formulas.

midtlinjeg 2020-10-27

### If the length of rectangular television screen is 24 inches and its height is 18 inches, what is the length of its diagonal in inches?

Khaleesi Herbert 2020-10-27

### How to solve $2\mathrm{cos}150°-3\mathrm{sin}90°+\mathrm{tan}210°$

FizeauV 2020-10-26

### What is the value $\mathrm{cos}\left({72}^{\circ }\right)$? Write your answer in decimals.

glamrockqueen7 2020-10-26

### Solve: $4\mathrm{sin}\left(2y-0.3\right)+5\mathrm{cos}\left(2y-0.3\right)=0$

Tobias Ali 2020-10-26

### Solve the equation $\mathrm{sin}\left(x°-20°\right)=\mathrm{cos}42°$ for x, where 0 < x < 90

Aneeka Hunt 2020-10-23

### Determine whether the statement "I’ve noticed that for sine, cosine, and tangent, the trig function for the sum of two angles is not equal to that trig function of the first angle plus that trig function of the second angle", makes sense or does not make sense, and explain your reasoning.

ankarskogC 2020-10-23

### Which of the following are equivalence relations? a. Is similar to for the set T of all triangles in a plane. b. Has the same radius as for the set of all circles in a plane. c. Is the square of for the set N. d. Has the same number of vertices as for the set of all polygons in a $e.\text{⊆}$ for the set of sets $S=A,B,C...$ f. "<" for the set R.

emancipezN 2020-10-21

### A man was parasailing above a lake at an angle of elevation of 32° from a boat, as modeled in the diagram, If 129.5 meters of cable connected the boat to the parasail, approximately how many meters above the lake was the man? (1) 68.6 (2) 80.9 (3) 109.8 (4) 244.4

Joni Kenny 2020-10-21

### Solve the equation $\mathrm{tan}x\mathrm{sec}x\mathrm{sin}x={\mathrm{tan}}^{2}x$

Tabansi 2020-10-18

### If $\mathrm{sin}x+\mathrm{sin}y=a\phantom{\rule{1em}{0ex}}\text{and}\phantom{\rule{1em}{0ex}}\mathrm{cos}x+\mathrm{cos}y=b$ then find $\mathrm{tan}\left(x-\frac{y}{2}\right)$

pancha3 2020-10-18

### Use function notation to describe the way the second variable (DV) depends upon the first variable (IV). Determine the domain and range for each, determine if there is a positive, negative, or no relationship, and explain your answers. A)IV: an acute angle V in a right triangle: DV: the area B of the triangle if the hypotenuse is a fixed length G. B)IV: one leg P of a right triangle: DV: the hypotenuse G of the right triangle if the other leg is 2 C)IV: the hypotenuse G of a right triangle: DV: the other leg P of the right triangle is one leg is 5.

SchachtN 2020-10-18

### Solve $n=3\sqrt{6\frac{V}{7}\pi }$ for V

melodykap 2020-10-18

### Solve $\mathrm{cos}{30}^{\circ }\mathrm{cos}{35}^{\circ }-\mathrm{sin}{30}^{\circ }\mathrm{sin}{35}^{\circ }$

Dealing with Trigonometry problems, it is extremely difficult to find practice answers online, which is why our professional team decided to publish a list of questions with the answers to help you see the most common solutions and the formatting. If you need any kind of additional help as you seek math homework online, the safest way would be to compare your task with the provided examples.

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