How do you find the value of cos 15?

Answer: The value of cos 15° = (√3+1)/2√2.

What is the exact value of sin 195?

FAQs on Sin 195 Degrees Sin 195 degrees is the value of sine trigonometric function for an angle equal to 195 degrees. The value of sin 195° is -(√6 – √2)/4 or -0.2588 (approx).

What is the exact value of cos 17 pi 6?

The exact value of cos(π6) cos ( π 6 ) is √32 .

What is the exact value of cos 13pi 12?

-0.9659258
The value of cos 13pi/12 is -0.9659258. . .. Cos 13pi/12 radians in degrees is written as cos ((13π/12) × 180°/π), i.e., cos (195°).

How do you find the exact value of cos 195?

The value of cos 195 degrees can be calculated by constructing an angle of 195° with the x-axis, and then finding the coordinates of the corresponding point (-0.9659, -0.2588) on the unit circle. The value of cos 195° is equal to the x-coordinate (-0.9659). ∴ cos 195° = -0.9659.

What is the exact value of cos 345 degrees?

0.9659258
The value of cos 345 degrees is 0.9659258. . .. Cos 345 degrees in radians is written as cos (345° × π/180°), i.e., cos (23π/12) or cos (6.021385. . .).

Are 5pi 6 and 17pi 6 Coterminal?

Trigonometry Examples The resulting angle of 5π6 5 π 6 is positive, less than 2π 2 π , and coterminal with 17π6 17 π 6 .

What are the common factors of 165 and 330?

The factors of 330 are 1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 330. Calcating the factors of 330 is straightforward. First, every number is divisible by itself and 1.

What are the prime factors of 165?

The factors of 165 are 1, 3, 5, 11, 15, 33, 55, 165. Calcating the factors of 165 is straightforward. 1 and 165 are the first two factors.

What is square root of 165?

The square root is a number which results in a specific quantity when it is multiplied by itself. The square root of 165 is 12.84523. The nearest previous perfect square is 144 and the nearest next perfect square is 169 .