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Olivia
Lv 4
Olivia asked in Science & MathematicsMathematics · 1 decade ago

How do you solve this difficult calculus problem?

Let C be the path counterclockwise around the circle given by x^2 + y^2 = 16.

Then if f(x, y) = (sin x)(cosh y) and g(x, y) = (-cos x)(sinh y), how would you evaluate the integral...

∫ f(x, y) dx + g(x, y) dy

C

which of these is the correct response?

a. 4π

b. 6π

c. 8π

d. 0

e. -4π

f. -6π

g. -8π

h. none of these

2 Answers

Relevance
  • Dr D
    Lv 7
    1 decade ago
    Favorite Answer

    You have to use Green's theorem

    ∫ f(x, y) dx + g(x, y) dy

    C

    = ∫ [gx - fy] * dA

    gx = sinx sinhy

    fy = sinx sinhy

    So the answer is 0.

  • Anonymous
    4 years ago

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