cadebryan cadebryan

31-03-2015
Mathematics

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Find the slope of the tangent to y= -7Sin(x)+2cos(x) at x= 3π/4

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Panoyin Panoyin

31-03-2015

y = -7sin(x) + 2cos(x)
y = -7sin(3π/4) + 2cos(3π/4)
y = -7sin(9.42/4) + 2cos(9.42/4)
y = -7sin(2.355) + 2cos(2.355)
y = -7(0.03698381721) + 2(0.9993158646)
y = -0.2588867205 + 1.998631729
y = 1.739745009

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