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Express 4.9sin(x)+4.4cos(x)in the form ksin(x+ϕ)

Express 4.9sin(x)+4.4cos(x)in the form ksin(x+ϕ)
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2. asked by Dan
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A sinusoidal function whose frequency is 3, maximum value is 12, minimum value is −6 , and y-intercept is (0, 3) .Which
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2. asked by Nelly
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a) Express f(theta) = 4cos theta - 6sin theta in the form r cos(theta + alpha)b) Hence find the general solution of the equation
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2. asked by Becky
3. 1,300 views
write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians.
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2. asked by Calvin
3. 834 views
For this matrice,[[0.9cos(-30), 0.9cos(60), 2] [0.9sin(30), 0.9sin(60), 4] [0, 0, 1]] What is the rotation (in degrees) and is
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2. asked by Grace
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write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians. answers: sqrt2sin (x+3pi/4), sqrt2sin
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2. asked by Kalen
3. 496 views
Write an equation for simple harmonic motion, given that the amplitude equals 4 inches and the period equals 2 seconds and the
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2. asked by Kayla
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What am I doing wrong?Equation: sin2x = 2cos2x Answers: 90 and 270 .... My Work: 2sin(x)cos(x) = 2cos(2x) sin(x) cos(x) =
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2. asked by Anonymous
3. 966 views
prove that the equation 2sin x cos x +4cos^2 x =1 may be written in the form of tan^2 x -2tan x -3=0
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2. asked by Nus
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(i) Express the complex number z = 4i/(1-i√3)in Cartesian form.(ii) Determine the modulus and argument of z, and hence express
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2. asked by s17
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