What is the exact value of cos 195 degrees?
-0.9659258
The value of cos 195 degrees is -0.9659258. . .. Cos 195 degrees in radians is written as cos (195° × π/180°), i.e., cos (13π/12) or cos (3.403392. . .).
How do you use the angle sum identity to find the exact value of cos 195?
Use the sum and difference identity to find the exact values of sine, cosine, and tangent of 195°=60°+135°.
How do you find the exact value of cos 210?
The value of cos 210 degrees can be calculated by constructing an angle of 210° with the x-axis, and then finding the coordinates of the corresponding point (-0.866, -0.5) on the unit circle. The value of cos 210° is equal to the x-coordinate (-0.866). ∴ cos 210° = -0.866.
How do you solve tan 195?
The value of tan 195 degrees in decimal is 0.267949192. . .. Tan 195 degrees can also be expressed using the equivalent of the given angle (195 degrees) in radians (3.40339 . . .) ⇒ 195 degrees = 195° × (π/180°) rad = 13π/12 or 3.4033 . . . ∴ tan 195° = tan(3.4033) = 2 – √3 or 0.2679491. . .
What is the exact value of tan 195 )? Brainly?
Answer: Value of tan195 degrees is 2√3+2.
What is the formula of Cos AB?
What is Cos(a-b)? Cos(a – b) is one of the important trigonometric identities, also called the cosine subtraction formula in trigonometry. Cos(a-b) can be given as, cos (a – b) = cos a cos b + sin a sin b, where ‘a’ and ‘b’ are angles.
What is the exact value of cos 270 degrees?
0
The exact value of cos 270 degrees is 0.
What is the exact value of cos 240?
-0.5
The value of cos 240 degrees is -0.5.
How do you find the exact value of cos15?
Answer: The value of cos 15° = (√3+1)/2√2.
What is the value of Cosacosb Sinasinb )?
sinacosb = 1 2 [sin(a + b) + sin(a − b)], cosacosb = 1 2 [cos(a + b) + cos(a − b)], sinasinb = 1 2 [cos(a − b) − cos(a + b)]. These identities are useful in integration and computing Laplace transforms.