khushikumar2003 khushikumar2003

10-07-2019
Mathematics

contestada

Is cos theta=cos(-theta)

Respuesta :

Gasaqui Gasaqui

15-07-2019

Answer:

TRUE

Step-by-step explanation:

An even function is a function that satisfies that f(x) = f(-x). Also, we know that cosine is an even function, therefore cos(theta) equals cos(-theta).

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