Which of the following correctly expresses cos(2β)+cos(6β) as a product?
−2sin(2β)cos(4β)
2sin(4β)cos(2β)
−2sin(4β)sin(2β)
2cos(4β)cos(2β)
Which of the following correctly expresses cos(2β)+cos(6β) as a product? −2sin(2β)cos(4β) 2sin(4β)cos(2β) −2sin(4β)sin(2β) 2cos(4β)cos(2β)
Complete the identity. sin (a +B) + sin (a - b) = ? 2cos a cos ß sin a cos ß 2sin a cos ß cos ß cos a
Use trigonometric identities to solve the equation 2sin(2θ)-2cos(θ)=0 exactly for 0≤θ≤2π. A.) What is 2sin(2θ) in terms of sin(θ)and cos(θ)? B.) After making the substitution from part 1, what is the common factor for the left side of the expression 2sin(2θ)-2cos(θ)=0 ? C.) Choose the correctly factored expression from below. a.) b.) c.) d.) We were unable to transcribe this imageAsin(e) cos(O) = 2cos(e) We were unable to transcribe this imageWe were unable to transcribe this image
USING MATLAB please show all commands (sin x + cos x)^2 = 1 + 2sin xcos x (b) 1 - 2cos x - 3cos^2 x/sin^2 x = 1 - 3cos x/1 - cos x For each part, verify that the identity is correct by calculating the values of the left and right sides of the equation, substituting x=20 degree.
solve the exact differential equation (-2sin(x)-ysin(x)+2cos(x))dx+(cos(x))dy=0 where y(0)=5
(USING MATLAB) Given two differential equations X= sin(t)(exp(cos(t))-2cos(4t)+sin(t/12)^5) And Y = cos(t)(exp(cos(t))-2cos(4t)+sin(t/12)^5) where 0<t<20pi is a vector of 5000 points created by using (linspace) command : Write script to plot X and Y with red color ?
draw the double sided spectrum for the signal given x(t)= 1+sin(2pi10t) + 2cos(2pi20t) + cos(3pi60t + pi/3)
show that p(x,t)=psi*(x,t) dot psi(x,t)=(1/a)(sin^2(xnpi/a) +sin^2(n'spi/a)) +2sin(nxpi/a)sin(n'xpi/a)cos((En-En')(t/h))
sin^2(theta/2)/sin^2 Complete the identity. sin sin2 = ? sinde O e cos? 2 1 4- cos e O_1 2cos e O sin? 2 + 2 cos e
Show how [sin((x+0.5)theta) - sin((x-0.5)theta)] / [2sin(theta/2)] = cos(x theta) Please show all steps clearly. Please do not overlook the theta in two places in the numerator.
art 1 sin(5t)) z(t) = (cos(50t) + x(t))?, where x(t) = }. z(t) is passed through a filter with impulse response h(t) in order to pass only the product 2x(t) cos(50t). Which filter below is the correct filter to do that? ST sin(5t) sin(15t) / (a) h(t) = {* tt at (b) h(t) sin(5t) sin(100) L 1. Tt at os(1004) 5 it - Tt J (c) h(t) = {i sinft) sin15)} 2cos(50) (a) h(e) = { i sin tuon )*2...