We need to find the value of $sec(\frac{11\pi}{6})$.

TrigonometryTrigonometrySecant FunctionUnit CircleAngle ConversionReference Angle
2025/5/1

1. Problem Description

We need to find the value of sec(11π6)sec(\frac{11\pi}{6}).

2. Solution Steps

First, we need to find the reference angle for 11π6\frac{11\pi}{6}. Since 11π6\frac{11\pi}{6} is in the fourth quadrant, we can find the reference angle by subtracting it from 2π2\pi:
2π11π6=12π611π6=π62\pi - \frac{11\pi}{6} = \frac{12\pi}{6} - \frac{11\pi}{6} = \frac{\pi}{6}.
The reference angle is π6\frac{\pi}{6}.
Now, we need to find the value of cos(π6)cos(\frac{\pi}{6}). We know that
cos(π6)=32cos(\frac{\pi}{6}) = \frac{\sqrt{3}}{2}.
Since 11π6\frac{11\pi}{6} is in the fourth quadrant, cosine is positive. So,
cos(11π6)=cos(π6)=32cos(\frac{11\pi}{6}) = cos(\frac{\pi}{6}) = \frac{\sqrt{3}}{2}.
Now, we can find the value of sec(11π6)sec(\frac{11\pi}{6}). Since sec(x)=1cos(x)sec(x) = \frac{1}{cos(x)}, we have:
sec(11π6)=1cos(11π6)=132=23sec(\frac{11\pi}{6}) = \frac{1}{cos(\frac{11\pi}{6})} = \frac{1}{\frac{\sqrt{3}}{2}} = \frac{2}{\sqrt{3}}.

3. Final Answer

The final answer is 23\frac{2}{\sqrt{3}}

Related problems in "Trigonometry"

We are asked to calculate $\sin(x + \frac{\pi}{6})$ given that $\sin(x) = \frac{4}{5}$ and $\frac{\p...

TrigonometryAngle Sum FormulaSine FunctionUnit Circle
2025/5/3

Simplify the expression $\sin(2\alpha) \cdot \frac{\cot(\alpha)}{2}$.

TrigonometryTrigonometric IdentitiesSimplificationDouble Angle FormulaCotangent
2025/5/3

We need to find the exact value of $\sin(\frac{3\pi}{4})$.

TrigonometrySine FunctionUnit CircleAngle CalculationReference Angle
2025/5/1

Determine the quadrant in which $\csc \theta > 0$ and $\sec \theta < 0$.

Trigonometric FunctionsQuadrantsSineCosineCosecantSecant
2025/5/1

The problem asks us to analyze the graph of the function $y = \tan(\theta - \frac{\pi}{2})$. We are ...

Trigonometric FunctionsTangent FunctionGraphingPeriodAsymptotesTransformations
2025/4/30

We are given that $\sin 3y = \cos 2y$ and $0^{\circ} \le y \le 90^{\circ}$. We are asked to find the...

TrigonometryTrigonometric EquationsSineCosine
2025/4/29

We are given that $\tan x = 1$, where $0^\circ \le x \le 90^\circ$. We are asked to evaluate $\frac{...

TrigonometryTrigonometric IdentitiesTangent FunctionSine FunctionCosine FunctionAngle Evaluation
2025/4/29

Prove the following trigonometric identity: $\frac{1 + \sin\theta - \cos\theta}{1 + \sin\theta + \co...

Trigonometric IdentitiesTrigonometric EquationsProof
2025/4/29

The problem asks us to find an angle given its tangent value. We are given that $\tan(x) = 0.4774$ a...

TrigonometryTangentArctangentAngle Calculation
2025/4/28

Prove the trigonometric identity: $tan(\frac{\theta}{2}) + cot(\frac{\theta}{2}) = 2csc(\theta)$.

Trigonometric IdentitiesDouble Angle FormulaTangentCotangentCosecantProof
2025/4/28