What is a exact value?

Exact value is where you cannot estimate the value you must be precise, eg; you can’t estimate something as being around about 5 centimetres; no you need an exact value such as 5.62.

What is the exact value of tan 105?

Tan 105 degrees is the value of tangent trigonometric function for an angle equal to 105 degrees. The value of tan 105° is -2 – √3 or -3.7321 (approx).

What is the exact value of cot 3pi 4?

-1
Cot 3pi/4 is the value of cotangent trigonometric function for an angle equal to 3π/4 radians. The value of cot 3pi/4 is -1.

What is the exact value of tan 165?

Tan 165 degrees is the value of tangent trigonometric function for an angle equal to 165 degrees. The value of tan 165° is -2 + √3 or -0.2679 (approx).

What is the exact value of Arcsin 1 2?

The exact value of arcsin(12) arcsin ( 1 2 ) is π6 .

How do you find cos θ from α and θ?

Since α and θ start and end in the same place, all of their trig functions are the same, so by finding the function values for α we find them for θ. You can say that since θ = α +2π, they are effectively the same angle; I will be using θ because that is what we’re looking for. cosθ = x r.

How do you find the five remaining trigonometric functions satisfying sintheta=3/8?

How do you find the five remaining trigonometric function satisfying sintheta=3/8, costheta<0? Since sin is positive and cos is less than 0, it means that this triangle is in quadrant 2. Use Pythagorean’s theorem ( a^2+b^2=c^2) and plug in your given values: a=3 and c=8 and solve.

How do you find the value of cotangent and secant?

Use the definition of cotangent to find the value of cot ( θ) cot ( θ). Substitute in the known values. Move the negative in front of the fraction. Find the value of secant. Tap for more steps… Use the definition of secant to find the value of sec ( θ) sec ( θ).

How to find the value of sin( θ) sin(θ)?

Use the definition of sine to find the value of sin ( θ) sin ( θ). Substitute in the known values. Move the negative in front of the fraction. Find the value of cosine. Tap for more steps… Use the definition of cosine to find the value of cos ( θ) cos ( θ). Substitute in the known values.