Solving Simpson's Rule: Finding cos^2(1^2)

[Jeviah]

Homework Statement

hello, I'm currently studying simpsons rule (unrelated) however the method requires the answer to cos^2(1^2) the answer given by my tutor is 0.2919, I have been unable to get this answer after inputting cos in various ways I always get 0.9997, which is right and if 0.2919 is correct how do I obtain it using a calculator?

Homework Equations

N/A

The Attempt at a Solution

have attempted this by inputting the following into my calculator:
(cos(1^2))^2
cos(1^2)*cos(1^2)
cos(1^2)^2

The answer is never 0.2919

 

[Arman777]

Homework Statement

hello, I'm currently studying simpsons rule (unrelated) however the method requires the answer to cos^2(1^2) the answer given by my tutor is 0.2919, I have been unable to get this answer after inputting cos in various ways I always get 0.9997, which is right and if 0.2919 is correct how do I obtain it using a calculator?

Homework Equations

N/A

The Attempt at a Solution

have attempted this by inputting the following into my calculator:
(cos(1^2))^2
cos(1^2)*cos(1^2)
cos(1^2)^2

The answer is never 0.2919

Its about degree-radian convention.

 

[Mark44]

have attempted this by inputting the following into my calculator:
(cos(1^2))^2
cos(1^2)*cos(1^2)
cos(1^2)^2

The answer is never 0.2919

Your calculator is in degree mode. In radian mode I get approximately .2919.
BTW, why bother with 1^2, since 1^2 = 1?

Its about degree-radian convention.

Exactly