How do you find the exact value of csc90?

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How do you find the exact value of csc90?

Trigonometry Examples The exact value of csc(90) is 1 . Multiply −1 by 1 .

What is the exact value of sine of 120?

√3/2
Sin 120 degrees is the value of sine trigonometric function for an angle equal to 120 degrees. The value of sin 120° is √3/2 or 0.866 (approx).

How do you find the exact value of Secant?

1 Answer

  1. sec=1cos.
  2. Let’s first convert to degrees from radians.
  3. 180π×−π3.
  4. =−60∘
  5. To make this a positive angle, we must subtract 60 from 360, giving us 300∘ .
  6. We use the 30−60−90,1,√3,2 .
  7. adjacent/hypotenuse = −12 (cos is negative in quadrant IV)
  8. 1/(adjacent/hypotenuse) = hypotenuse/adjacent =−2.
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What is the exact value of \CSC 45 CIRC csc 45 ∘ )\ csc left parenthesis 45 degrees right parenthesis?

Trigonometry Examples The exact value of csc(45°) csc ( 45 ° ) is √2 .

How do you find COS 120 without a calculator?

The value of cos 120 degrees can be calculated by constructing an angle of 120° with the x-axis, and then finding the coordinates of the corresponding point (-0.5, 0.866) on the unit circle. The value of cos 120° is equal to the x-coordinate (-0.5). ∴ cos 120° = -0.5.

What is the exact value of tan 30?

0.5774
Tan 30 degrees is the value of tangent trigonometric function for an angle equal to 30 degrees. The value of tan 30° is 1/√3 or 0.5774 (approx).

What is the exact value of cos 30?

Cos 30° = √3/2 is an irrational number and equals to 0.8660254037 (decimal form). Therefore, the exact value of cos 30 degrees is written as 0.8660 approx. √3/2 is the value of Cos 30° which is a trigonometric ratio or trigonometric function of a particular angle.

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How do you find the exact value of sec 30 degrees?

The exact value of sec(30°) sec ( 30 ° ) is 2√3 . Multiply 2√3 by √3√3 .

What is the exact value of sec 60?

2
As we know sec 60 degree or sec 60 value is 2.

How do you find the value of CSC 60?

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosecant is negative in the fourth quadrant. The exact value of csc(60) csc ( 60) is 2 √3 2 3. Multiply 2 √3 2 3 by √3 √3 3 3.

What is CSC(90) = 1 sin 90?

You only need to apply the definition: the cosecant of an angle x is defined as 1 sin(x). Since sin(90) = 1, then csc(90) = 1 sin(90) = 1 1 = 1.

What is CSC in trigonometry?

The Csc or Cosecant Function is one of the basic function in trigonometry. The cosecant, csc, or cosec, is the reciprocal of sin function. It is the ratio of the length of the hypotenuse to the length of the opposite side.

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