# Recent questions in Trigonometric equation and identitie

Trigonometric equation and identitie

### Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. The mean arrival rate is 11 passengers per minute.

Trigonometric equation and identitie

### Prove the identity $$\frac{1}{2\csc 2x}=\cos^2 x \tan x$$ Choose the sequence of steps below that verifies the identity A) $$\cos^2 x \tan x =\cos^2 x \frac{\sin x}{\cos x}=\cos x \sin x =\frac{\sin 2x}{2}=\frac{1}{2\csc 2x}$$ B) $$\cos^2 x \tan x=\cos^2 x \frac{\cos x}{\sin x}=\cos x \sin x=\frac{\sin 2x}{2}=\frac{1}{2 \csc 2x}$$ C) $$\cos^2 x \tan x=\cos^2 x \frac{\cos x}{\sin x}=\cos x \sin x=2 \sin 2x=\frac{1}{2 \csc 2x}$$ D) $$\cos^2 x \tan x =\cos^2 x \frac{\sin x}{\cos x}=\cos x \sin x=2 \sin 2x=\frac{1}{2 \csc 2x}$$

Trigonometric equation and identitie

### (1,5 points) Find the intervals of concavity and the inflection points of the function $$\displaystyle{f{{\left({x}\right)}}}={x}{\left({2}{x}−{1}\right)}^{{2}}$$

Trigonometric equation and identitie

### $$\displaystyle{\left({\sin{{x}}}+{\cos{{x}}}\right)}²={1}+{\sin{{2}}}{x}$$

Trigonometric equation and identitie

### Verify that the equation is an identity. (Hint: $$\cos2x=\cos(x+x)$$.) $$\cos2x+2\sin^{2}x-1=0$$

Trigonometric equation and identitie

### If J is jointly proportional to G and V, and J = √3 when G = √2 and V = √8, what is J when G = √6 and V = 8?

Trigonometric equation and identitie

### Understand sine and cosine values on the unit circle Question If the terminal side of angle tt goes through the point $$\displaystyle{\left(-{\left(\frac{{5}}{{13}}\right)},-{\left(\frac{{12}}{{13}}\right)}\right.}$$ on the unit circle, then what is cos(t)? Provide your answer below: $$\displaystyle{\cos{{\left({t}\right)}}}=□$$

Trigonometric equation and identitie

### $$\frac{1}{\sec\theta}+\frac{1}{\sec\theta+\tan\theta}$$

Trigonometric equation and identitie

### tan(x)+√3=0

Trigonometric equation and identitie

### 28.116∘30′

Trigonometric equation and identitie

### Find the volume of the parallelepiped with adjacent edges PQ, PR, and PS. $$p(3,\ 0,\ 1)$$ $$Q(-1,\ 2,\ 5)$$ $$R(5,\ 1,\ -1)$$ $$S(0,\ 4,\ 2)$$

Trigonometric equation and identitie

### Write the complex number in standard form. $$5+\sqrt{-36}$$

Trigonometric equation and identitie

### Find the altitude of an isosceles triangle with base 4.24 feet. The vertex angle of the triangle measures 85°

Trigonometric equation and identitie

### For a Science fair project, a group of students tested different Materials used to construct kites. The instructor gave to the group an instrument that accurately measures the angle of elevation. In one of the tests, the angle of elevation was 63.4° with 670 ft of string out. Assuming the string was taut, how high was the kite?

Trigonometric equation and identitie

### solve the following equation for all values of x: $$\displaystyle{{\sin}^{{2}}{x}}+{\sin{{x}}}{\cos{{x}}}$$

Trigonometric equation and identitie

### Solve $$(\sin x + \cos x)(\sin x + \cos x)$$

Trigonometric equation and identitie

### Solve $$\displaystyle{{\tan}^{{2}}{x}}-{{\sin}^{{2}}{x}}={{\tan}^{{2}}{x}}{{\sin}^{{2}}{x}}$$

Trigonometric equation and identitie

### Find the exact value of the expression. $$\tan25^{\circ} + \tan 110^{\circ}/1-\tan25^{\circ} \cdot \tan110^{\circ}$$

Trigonometric equation and identitie