45. 3(r + y) = 100xy 46. x_xy + y = 4 47. √xy = x - 2y 48. sin(θ) + 2cos(2y) = [ ] 49. x^2 + √J = 5 50. tan(x + y) = x
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For question 45, we have the equation: 3(r+y) = 100xy Divide both sides by 3: r+y = \frac{100xy}{3} For question 46, we have the equation: x^2y + y = 4 Factor out y: y(x^2 + 1) = 4 For question 47, we have the equation: \sqrt{xy} = x - 2y Show more…
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