Mathematics, 21.01.2020 20:31 Chealyn
Find the zeros of the function f(x)=1/2cos 2x with interval -2pi,2pi]
Answers: 1
![\bf f(x)=\cfrac{1}{2}cos(2x)\qquad [-2\pi \ ,\ 2\pi ]\iff [0\ , \ 2\pi ]\\\\ -----------------------------\\\\ cos(2\theta)= \begin{cases} cos^2(\theta)-sin^2(\theta)\\ 1-2sin^2(\theta)\\ \boxed{2cos^2(\theta)-1} \end{cases}\\\\ -----------------------------\\\\](/tpl/images/0464/4775/47ef8.png)
Another question on Mathematics
Mathematics, 21.06.2019 15:20
Angle mno is s rotated 180 degrees counterclockwise about the origin to form angle m’n’o’. which statement shows the measure of angle m’n’o’?
Answers: 1
Mathematics, 21.06.2019 17:00
Drag the tiles to the correct boxes to complete the pairs. match the cart-coordinates with their corresponding pairs of y-coordinates of the unit circle
Answers: 3
Mathematics, 21.06.2019 19:00
Give me the equations of two lines that have the same slope but are not parallel.
Answers: 3
Mathematics, 21.06.2019 20:30
Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2
Answers: 2
You know the right answer?
Find the zeros of the function f(x)=1/2cos 2x with interval -2pi,2pi]...
Questions
Mathematics, 27.09.2019 03:30
Physics, 27.09.2019 03:30
English, 27.09.2019 03:30
Mathematics, 27.09.2019 03:30
Mathematics, 27.09.2019 03:30
Mathematics, 27.09.2019 03:30
