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2. Let f(x) = ksin(kx),

  1. Express 4.9sin(x)+4.4cos(x)in the form ksin(x+ϕ)
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    2. Dan asked by Dan
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  2. write y=sinx-cosx in the form y=ksin (x+a), where the measure of a is in radians.
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    2. Calvin asked by Calvin
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  3. 2. Let f(x) = ksin(kx), where k is a positive constant. Find the area of the region bounded by one arch of the graph of f and
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    2. Yoona asked by Yoona
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  4. I'm trying to find the second derivative of h(x)= x^2 + cos(kx)My answer for h'(x) is 2x - ksin(kx) but I'm not sure if that's
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    2. Kris asked by Kris
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  5. 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. Kalen asked by Kalen
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