What is the value of sin390?

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What is the value of sin390?

0.5
The value of sin 390 degrees is 0.5. Sin 390 degrees in radians is written as sin (390° × π/180°), i.e., sin (13π/6) or sin (6.806784. . .).

What is the reference angle of θ 390 degrees?

Since 30° is in the first quadrant, the reference angle is 30° .

How do you find the exact value of 390 degrees?

The angle 390°, coterminal to angle 30°, is located in the First Quadrant(Quadrant I). Since cosine function is positive in the 1st quadrant, thus cos 390 degrees value = √3/2 or 0.8660254. . .

How do you solve sin 510?

The value of sin 510° is equal to the y-coordinate (0.5). ∴ sin 510° = 0.5.

What is the value of cot 570?

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√3
Cot 570 degrees is the value of cotangent trigonometric function for an angle equal to 570 degrees. The value of cot 570° is √3 or 1.7321 (approx).

What are negative Coterminal angle for 390 degrees?

Coterminal angles are angles in standard position (angles with the initial side on the positive x -axis) that have a common terminal side. For example 30° , −330° and 390° are all coterminal.

Are 30 degrees and 390 degrees Coterminal?

Coterminal angles: are angles in standard position (angles with the initial side on the positive x-axis) that have a common terminal side. For example, the angles 30°, –330° and 390° are all coterminal (see figure 2.1 below).

How do you find the exact value of sin330?

The value of sin 330 degrees can be calculated by constructing an angle of 330° with the x-axis, and then finding the coordinates of the corresponding point (0.866, -0.5) on the unit circle. The value of sin 330° is equal to the y-coordinate (-0.5). ∴ sin 330° = -0.5.

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How do you find the value of sin22 5?

Answer: The exact value of sin 22.5° using the half-angle formula is √(2 – √2) / 2 or 0.38.

What is the value of Cosec 1200?

2/√3
Cosec 1200 degrees is the value of cosecant trigonometric function for an angle equal to 1200 degrees. The value of cosec 1200° is 2/√3 or 1.1547 (approx).

How do you find cot 570?

To find the value of cot 570 degrees using the unit circle, represent 570° in the form (1 × 360°) + 210° [∵ 570°>360°] ∵ The angle 570° is coterminal to 210° angle and also cotangent is a periodic function, cot 570° = cot 210°.