Define Function: We are given the function y=sin−1(2x+51). To find the derivative dxdy, we will use the chain rule and the derivative of the inverse sine function.The derivative of sin−1(u) with respect to u is 1−u21, where u is a function of x.Let u=2x+51, then dxdu=−(2x+5)22.
Apply Chain Rule: Now we apply the chain rule to find dxdy. The chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function.So, dxdy=dxd(sin−1(u))⋅dxdu.
Substitute Derivatives: Substitute the derivative of sin−1(u) and dxdu into the chain rule expression.dxdy=1−u21⋅(−(2x+5)22).
Simplify Square Root: Now we substitute u back into the expression to get the derivative in terms of x.dxdy=⎝⎛1−(2x+51)21⎠⎞∗(−(2x+5)22).
Write Full Expression: Simplify the expression inside the square root. 1−(2x+51)2=1−4x2+20x+251=4x2+20x+254x2+20x+25−1=4x2+20x+254x2+20x+24.
Combine Terms: Now we can write the full expression for dxdy.dxdy=⎝⎛4x2+20x+254x2+20x+241⎠⎞∗(−(2x+5)22).
Final Simplified Expression: Simplify the square root by combining the terms. (4x2+20x+254x2+20x+24)=1−(4x2+20x+251).
Final Simplified Expression: Simplify the square root by combining the terms. 4x2+20x+254x2+20x+24=1−4x2+20x+251. Now we can write the final simplified expression for dxdy. dxdy=(2x+5)2−2/1−4x2+20x+251.
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