coylenoah0

27.06.2019 • 

Mathematics

Verify green's theorem for the disc d with center (0, 0) and radius r and the following functions. (a) p(x, y) = 2xy2, q(x, y) = −2yx2 ∂d p dx + q dy = d ∂q ∂x − ∂p ∂y dx dy = (b) p(x, y) = x + y, q(x, y) = 5y ∂d p dx + q dy = d ∂q ∂x − ∂p ∂y dx dy = (c) p(x, y) = 2xy = q(x, y) ∂d p dx + q dy = d ∂q ∂x − ∂p ∂y dx dy = (d) p(x, y) = 5y, q(x, y) = x ∂d p dx + q dy = d ∂q ∂x − ∂p ∂y dx dy =

Ответ:

pollo44

01.06.2021

Mathematics

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Option A is correct.

Step-by-step explanation:

We are given

sin∠X = cos∠Y

And value of ∠X= 72°

we need to find value of ∠Y

Putting value of ∠X in the given equation

sin∠X = cos∠Y

sin(72°) = cos∠Y

=> cos∠Y = 0.951

Now we take cos^-1

∠Y = cos^-1(0.951)

∠Y = 18.01 ≈ 18°

So Option A is correct.

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