Q. Solve the equation.dxdy=cos(y)4x3Choose 1 answer:(A) y=arccos(4x3)+C(B) y=arccos(4x3+C)(C) y=arcsin(x4+C)(D) y=arcsin(x4)+C
Separate variables x and y: To solve the differential equation dxdy=cos(y)4x3, we need to separate the variables x and y. This means we want to get all the y terms on one side of the equation and all the x terms on the other side.
Multiply by cos(y): We multiply both sides by cos(y) to get cos(y)dy=4x3dx.
Integrate both sides: Now we integrate both sides of the equation. The left side with respect to y and the right side with respect to x.
Apply inverse sine: The integral of cos(y)dy is sin(y), and the integral of 4x3dx is x4. So we have sin(y)=x4+C, where C is the constant of integration.
Final solution: To solve for y, we take the inverse sine (arcsin) of both sides.y=arcsin(x4+C)
Final solution: To solve for y, we take the inverse sine (arcsin) of both sides.y=arcsin(x4+C)Looking at the answer choices, we see that option (C) y=arcsin(x4+C) matches our solution.
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