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3 answers

Find the derivative and solve for x=0.

dy/dx = 3cos(x)-18cos(x)sin(x)

dy/dx at x=0 is 3

2007-03-19 17:36:19 · answer #1 · answered by gebobs 6 · 0 0

Find the derivative, plug 0 for x. then plug your slope along with (0,0) in

y=mx+b

then you have b, its just a matter of rewriting it with the slope and the b you find

2007-03-20 00:41:33 · answer #2 · answered by jelipe 1 · 0 0

f `(x) = 3.cosx - 6sinx.cosx
f `(0) = 3 = m
Equation of tangent at (0,0) is given by:-
y = 3x

2007-03-20 06:37:26 · answer #3 · answered by Como 7 · 0 0

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