# What is the exact value of tan 75?

## What is the exact value of tan 75?

3.7321
Tan 75 degrees is the value of tangent trigonometric function for an angle equal to 75 degrees. The value of tan 75° is 2 + √3 or 3.7321 (approx).

## What is the sum and difference identities for tangent?

Key Equations

Sum Formula for Cosine cos(α+β)=cosαcosβ−sinαsinβ
Sum Formula for Tangent tan(α+β)=tanα+tanβ1−tanαtanβ
Difference Formula for Tangent tan(α−β)=tanα−tanβ1+tanαtanβ
Cofunction identities sinθ=cos(π2−θ)cosθ=sin(π2−θ)tanθ=cot(π2−θ)cotθ=tan(π2−θ)secθ=csc(π2−θ)cscθ=sec(π2−θ)

How do you find the value of cos 75?

The value of cos 75 degrees can be calculated by constructing an angle of 75° with the x-axis, and then finding the coordinates of the corresponding point (0.2588, 0.9659) on the unit circle. The value of cos 75° is equal to the x-coordinate (0.2588). ∴ cos 75° = 0.2588.

### What is the value of tan 75 cot 75?

Answer: tan 75° + cot 75° = 4.

### What is the value of tan 74?

If the angle is 74, then the tan of 74 degrees will be 3.487.

What is tangent identity?

The tangent identity is just tan(x) = sin(x)/cos(x) (when defined), the definition of tangent.

#### What is the difference formula for tangent?

To determine the difference identity for tangent, use the fact that tan(−β) = −tanβ. Example 1: Find the exact value of tan 75°. Example 2: Verify that tan (180° − x) = −tan x.

#### What is the value of tan 76?

4.0107809
The value of tan 76 degrees is 4.0107809. . .. Tan 76 degrees in radians is written as tan (76° × π/180°), i.e., tan (19π/45) or tan (1.326450. . .).

How is tan70 calculated?

To find the value of tan 70 degrees using the unit circle:

1. Rotate ‘r’ anticlockwise to form 70° angle with the positive x-axis.
2. The tan of 70 degrees equals the y-coordinate(0.9397) divided by x-coordinate(0.342) of the point of intersection (0.342, 0.9397) of unit circle and r.

## How do you find the sum identity of tangent?

Tangent Identities Formulas for the tangent function can be derived from similar formulas involving the sine and cosine. The sum identity for tangent is derived as follows: To determine the difference identity for tangent, use the fact that tan (−β) = −tanβ.

## What are the trigonometric sum and difference identities of α and β?

Consider two angles , α and β, the trigonometric sum and difference identities are as follows: 1 sin (α+β)=sin (α).cos (β)+cos (α).sin (β) 2 sin (α–β)=sinα.cosβ–cosα.sinβ 3 cos (α+β)=cosα.cosβ–sinα.sinβ 4 cos (α–β)=cosα.cosβ+sinα.sinβ

What is the formula for trigonometric identity?

\$$\an (\\alpha – \\beta) = \\frac{\an \\alpha – \an \\beta}{1 + \an \\alpha. \an \\beta}\$$ Trigonometric Identities Formula Similarly, an equation which involves trigonometric ratios of an angle represents a trigonometric identity.

### How do you find the exact value of tan 30?

Split 75 75 into two angles where the values of the six trigonometric functions are known. Apply the sum of angles identity. The exact value of tan(30) tan ( 30) is √3 3 3 3. The exact value of tan(45) tan ( 45) is 1 1.