$\displaystyle x=\frac{t}{1+t},y=ln(1+t),0\leq t\leq \frac{\pi }{2}$
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Originally Posted by butbi9x $\displaystyle x=\frac{t}{1+t},y=ln(1+t),0\leq t\leq \frac{\pi }{2}$ Start by applying the formula. Have you done this? Please show all the details of what you've done and where you get stuck.
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