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2.11
∫ sin (4.3x) dx =
0.52


a. -0.36

b. -0.18

c. -0.11

d. 0.05

e. 0.07

f. 0.09

or is it none of these ?

2007-04-21 14:37:32 · 2 answers · asked by chris 2 in Science & Mathematics Mathematics

2 answers

Integrate your function to get (if I remember right)
-(1/4.3) Cos 4.3 x
Evaluate the integrated function at both limits
Subtract the value at the lower limit from that at the higher limit.
Inform us if the units are integer or radians.

2007-04-21 14:49:34 · answer #1 · answered by cattbarf 7 · 0 0

the integral is equal to -(cos4.3x)/4.3
so when evaluated at the limits of integration,
-cos9.073/4.3 + cos2.236/4.3 = 0.07477

So answer is e. Note that your calculator should be in radian mode.

2007-04-21 21:58:35 · answer #2 · answered by Christopher 2 · 0 0

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