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 second quadrant.

The exact value of <math><mstyle displaystyle="true"><mi>cos</mi><mrow><mo>(</mo><mn>45</mn><mo>)</mo></mrow></mstyle></math> is <math><mstyle displaystyle="true"><mfrac><mrow><msqrt><mn>2</mn></msqrt></mrow><mrow><mn>2</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 cos(135 degrees )? 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 billion seventy-six million eight hundred sixty-eight thousand four hundred six |
---|

- 2076868406 has 4 divisors, whose sum is
**3115302612** - The reverse of 2076868406 is
**6048686702** - Previous prime number is
**2**

- Is Prime? no
- Number parity even
- Number length 10
- Sum of Digits 47
- Digital Root 2

Name | two hundred seventeen million ninety-five thousand five hundred twenty-eight |
---|

- 217095528 has 64 divisors, whose sum is
**980229600** - The reverse of 217095528 is
**825590712** - Previous prime number is
**299**

- Is Prime? no
- Number parity even
- Number length 9
- Sum of Digits 39
- Digital Root 3

Name | forty-three million six hundred thirty-six thousand one hundred fifty-nine |
---|

- 43636159 has 4 divisors, whose sum is
**49869904** - The reverse of 43636159 is
**95163634** - Previous prime number is
**7**

- Is Prime? no
- Number parity odd
- Number length 8
- Sum of Digits 37
- Digital Root 1