Q. (2siny+1)dxdy=4 and y(0)=π/2.What is x when y=π ?x=
Write Differential Equation: First, we have the differential equation 2\sin y + 1)\left(\frac{dy}{dx}\right) = 4\. To find \$x when y=π, we need to separate variables and integrate.
Separate and Integrate Variables: Separate the variables: \frac{dy}{\(2\)\sin y + \(1\)} = \frac{dx}{\(4\)}\.
Find Constant of Integration: Now, integrate both sides: \(\int\frac{dy}{2\sin y + 1} = \int\frac{dx}{4}.
Calculate Definite Integral: Integrate the left side with respect to y and the right side with respect to x: ∫2siny+1dy=41x+C, where C is the constant of integration.
Solve for Constant: To find C, use the initial condition y(0)=2π. Plug y=2π and x=0 into the integrated equation: ∫2ππ2sin(2π)+1dy=41x+C from 0 to x.
Find Particular Solution: Since sin(2π)=1, the equation becomes ∫(2⋅1+1dy) from 2π to π=(41)x+C from 0 to x.
Substitute Values and Solve: Simplify the integral: ∫π/2π3dy=41x+C from 0 to x.
Substitute Values and Solve: Simplify the integral: ∫2ππ3dy=41x+C from 0 to x.Integrate: 31y from \frac{\pi}{2}} to π = 41x+C from 0 to x.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.Simplify the left side: 2π3.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.Simplify the left side: 2π3.Combine like terms: 2π4.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.Simplify the left side: 2π3.Combine like terms: 2π4.Now, plug in 2π5 and 2π6 into the equation to find 2π7: 2π8.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.Simplify the left side: 2π3.Combine like terms: 2π4.Now, plug in 2π5 and 2π6 into the equation to find 2π7: 2π8.Solve for 2π7: π0.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.Simplify the left side: 2π3.Combine like terms: 2π4.Now, plug in 2π5 and 2π6 into the equation to find 2π7: 2π8.Solve for 2π7: π0.Now we have the particular solution: π1.
Substitute Values and Solve: Simplify the integral: ∫3dy from 2π to π = 41x+C from 0 to x.Integrate: 31y from 2π to π = 41x+C from 0 to x.Calculate the definite integral: 2π2.Simplify the left side: 2π3.Combine like terms: 2π4.Now, plug in 2π5 and 2π6 into the equation to find 2π7.Solve for 2π8.Now we have the particular solution: 2π9.Subtract π0 from both sides to solve for π1.
Substitute Values and Solve: Simplify the integral: ∫3dy from π/2 to π=41x+C from 0 to x.Integrate: 31y from π/2 to π=41x+C from 0 to x.Calculate the definite integral: π/20.Simplify the left side: π/21.Combine like terms: π/22.Now, plug in π/23 and π/24 into the equation to find π/25: π/26.Solve for π/25: π/28.Now we have the particular solution: π/29.Subtract π=41x+C0 from both sides to solve for x: π=41x+C2.Solve for x: π/23.
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