Question

If the angle 0= -45 degree find the value of cos

Answer 1

Answer:

Step-by-step explanation:

Cos(-x) = + cos(x)

Where x is the angle. So if angle is -45 degrees.

Then cos(-45)=cos(45)= 1/√2

Answer 2

Answer:

Step-by-step explanation:cos 45 is root of 1/2

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