the value of cos(π) is

• (a) 1/1024
• (b) 1/512
• (c) 1/256
• (d) 1/128

A

1/256

B

1/2

C

1/512

D

1/1024

The value of cos(π) can be determined using the unit circle or trigonometric identities. On the unit circle, the angle π radians corresponds to 180 degrees, which is located on the negative x-axis.

Value of cos(π)

At this position, the coordinates are (-1, 0). The cosine of an angle is defined as the x-coordinate of the corresponding point on the unit circle.

Final Answer

Therefore, cos(π) equals -1. None of the options provided (a) 1/1024, (b) 1/512, (c) 1/256, or (d) 1/128 are correct. The correct value is:

• -1