Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the third quadrant.

The exact value of <math><mstyle displaystyle="true"><mi>cos</mi><mrow><mo>(</mo><mfrac><mrow><mi>π</mi></mrow><mrow><mn>3</mn></mrow></mfrac><mo>)</mo></mrow></mstyle></math> is <math><mstyle displaystyle="true"><mfrac><mrow><mn>1</mn></mrow><mrow><mn>2</mn></mrow></mfrac></mstyle></math> .

The exact value of <math><mstyle displaystyle="true"><mi>arccos</mi><mrow><mo>(</mo><mo>-</mo><mfrac><mrow><mn>1</mn></mrow><mrow><mn>2</mn></mrow></mfrac><mo>)</mo></mrow></mstyle></math> is <math><mstyle displaystyle="true"><mfrac><mrow><mn>2</mn><mi>π</mi></mrow><mrow><mn>3</mn></mrow></mfrac></mstyle></math> .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Do you know how to Find the Exact Value arccos(cos((4pi)/3))? If not, you can write to our math experts in our application. The best solution for your task you can find above on this page.

Name | two hundred eleven million five hundred seven thousand four hundred eighty-six |
---|

- 211507486 has 8 divisors, whose sum is
**317323800** - The reverse of 211507486 is
**684705112** - Previous prime number is
**12157**

- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 34
- Digital Root 7

Name | seven hundred twelve million eight hundred fifty-three thousand two hundred fifty-eight |
---|

- 712853258 has 16 divisors, whose sum is
**1152072936** - The reverse of 712853258 is
**852358217** - Previous prime number is
**2693**

- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 41
- Digital Root 5

Name | one billion nine hundred fifty-four million nine hundred seventy-two thousand six hundred fourteen |
---|

- 1954972614 has 16 divisors, whose sum is
**3137466816** - The reverse of 1954972614 is
**4162794591** - Previous prime number is
**47**

- Is Prime? no
- Number parity even
- Number length 10
- Sum of Digits 48
- Digital Root 3