What is the trigonometric function for cos(-270)?

a)1
b)-1
c)0
d)undefined

Put cos(-270 degrees) in the google search engine.

c zero

To find the value of cos(-270 degrees), you can use a calculator or search for it on the internet. One way to do this is by entering "cos(-270 degrees)" into a search engine or calculator.

In this case, let's put "cos(-270 degrees)" in the Google search engine:

1. Open a web browser and go to www.google.com.
2. In the search bar, type "cos(-270 degrees)" (without the quotation marks).
3. Hit the Enter key or click on the Google Search button.

After performing the search, Google will display the result at the top of the search page. The trigonometric function for cos(-270 degrees) is "1" (option a in this case).

Therefore, the correct answer is option a) 1.