Trig Values on the unit circle

A | B |
---|---|

cos pi/2 | 0 |

sin pi/2 | 1 |

cos 2pi/3 | -1/2 |

cos 3pi/4 | -sqroot2/2 |

Also know, what is cos pi by 2?

The exact value of **cos**(π**2**) **cos** ( π **2** ) is 0 . 0.

One may also ask, what is the value of cos 2 pi by 3? The exact **value of cos**(**π3**) **cos** ( **π 3** ) is 1**2** .

Simply so, what is the exact value of cos pi?

Apply the difference of angles identity. The **exact value of cos**(**π**4) **cos** ( **π** 4 ) is √22 .

What is the sine value of pi?

Trig Values on the unit circle

A | B |
---|---|

sin pi | 0 |

cos pi | -1 |

tan pi | 0 |

sin 7pi/6 | -1/2 |

Related Question Answers

## What is the value of sin Pi by 3?

The exact

**value of sin**(π**3**)**sin**( π**3**) is √**3**2 .## What is the secant?

[ sē′kănt′ ] A straight line or ray that intersects a curve, especially a circle, at two or more points. The ratio of the length of the hypotenuse in a right triangle to the side adjacent to an acute angle. The

**secant**is the inverse of the cosine.## What is the value of sin 5 pi by 2?

**sin**(

**5**π

**2**)=1 , cos(

**5**π

**2**)=0 , tan(

**5**π

**2**)=∞ , cot(

**5**π

**2**)=0 , sec(

**5**π

**2**)=∞ and csc(

**5**π

**2**)=1 .

## What is the mean of pi?

Definition:

**Pi**is a number – approximately 3.142. It is the circumference of any circle divided by its diameter. The number**Pi**, denoted by the Greek letter π – pronounced ‘pie', is one of the most common constants in all of mathematics. It is the circumference of any circle, divided by its diameter.## What is the value of cos 3 pi by 4?

The exact

**value of cos 3pi**/**4**is -1/√2. In a right triangle, the**cosine**angle is divide the length of hypotenuse (H) by the length of the adjacent side (A). The word sine comes from the Latin word sinus and the prefix ‘co' with sine make the**cosine**word.## What is the value of Tan pi 6?

√33

## What is the value of Cos Pi by 4?

The exact

**value of cos**(π**4**)**cos**( π**4**) is √22 .## How do you find Cos Pi 8?

**cos**(π

**8**)=

**cos**(π42)=?? ??1+

**cos**(π4)2=?? ??1+√222=?? ??2+√222=√2+√24=√2+√22 .

## What is the exact value of pi 12?

Calculator –> sin(π

**12**)=sin15∘=0.26 .## What is cos pi 12 on the unit circle?

**cos**(

**π12**)=√64+√24.

## What is cos theta formula?

The

**Cos Θ**is the ratio of the adjacent side to the hypotenuse, where (**Θ**is one of the acute angles. The**cosine formula**is as follows:**Cos****Theta**= frac{Adjacent}{Hypotenuse}## What is the exact value of tan 0?

The

**exact value of tan**(**0**) is**0**.