Questions LLC
Login
or
Sign Up
Ask a New Question
Mathematics
Trigonometry
Angle measurement
what is the exact value of this equation.
cos(20) if it equals pi/4
1 answer
Did you mean
solve cos(2Ø) = π/4 ?
You can
ask a new question
or
answer this question
.
Related Questions
Angle a lies in the second quadrant and sina=7/25.
a) Determine an exact value for cos 2a b) Determine an exact value for sin 2a
Which of the following are true statements? Select all that apply. (1 point) Responses sin 67° = sin 42° cos 25° + cos 42°
If sin A = 3/5 and cos B = 24/25 and <A and <B are both in quadrant 1, what is the exact value of cos (A-B) ? Help please
Use the graph to derive the equation Y equals MX for a line through the origin, simplify the numerical coefficient if needed
Y
Write an equation for the translation of the function. y = cos x; translated 6 units up
A. y = cos x- 6 B. y = cos(x + 6) C.
Which of the following are exact numbers?
a. There are 100 cm in 1 m. b. One meter equals 1.094 yard. c. We can use the equation:
Find the exact values of x in the interval [0, 4π] that satisfy the equation sin x = -√2 / 2 (refer to y = sin x or y = cos x
4. Find the exact value for sin(x+y) if sinx=-4/5 and cos y = 15/17. Angles x and y are in the fourth quadrant.
5. Find the exact
If cos degree equals to 0.8641
What is Sin degree? I have no idea how to find this. Please help me. I got help from two people,
Solve the equation for exact solutions in the interval 0 ≤ x < 2π. (Enter your answers as a comma-separated list.)
cos 2x cos