How do you solve SIN 315 degrees?

The value of sin 315 degrees can be calculated by constructing an angle of 315° with the x-axis, and then finding the coordinates of the corresponding point (0.7071, -0.7071) on the unit circle. The value of sin 315° is equal to the y-coordinate (-0.7071). ∴ sin 315° = -0.7071.

What is the value of cos 45 *?

0.7071
The exact value of cos 45 degrees is 1/√2 (in surd form), which is also equal to sin 45 degrees. It is an irrational number, equal to 0.7071067812… in decimal form. The approximate value of cos 45 is equal to 0.7071.

What is the cot of 315?

-1
Cot 315 degrees is the value of cotangent trigonometric function for an angle equal to 315 degrees. The value of cot 315° is -1.

Is Tan 315 positive?

Note: Since 315° lies in the 4th Quadrant, the final value of tan 315° will be negative. We can use trigonometric identities to represent tan 315° as, cot(90° – 315°) = cot(-225°)

What is the exact value of cos 135?

The value of cos135 is −1√2 .

What is cot degree?

A cotangent of an angle α is also equal to the ratio between its cosine and sine, so cotα = cosα / sinα. Following from the definition, the function results in an undefined value at certain angles, like 0°, 180°, 360°, and so on.

Why is the tan 315 negative?

Trigonometry Examples Make the expression negative because tangent is negative in the fourth quadrant.

What is the cot of 315 degrees?

Trigonometric Function Values of Special Angles

What quadrant is sin30?

1st Quadrant
Note: Since 30° lies in the 1st Quadrant, the final value of sin 30° will be positive. We can use trigonometric identities to represent sin 30° as, sin(180° – 30°) = sin 150°