Hello! Differentiate x[(9 - (x^2))^(1/2)] + 9 [sin^(-1) (x/3)], leaving your answer in the form of [a(b-x^2)^(1/2)] Thank you for helping!
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Originally Posted by Tangera Hello! Differentiate x[(9 - (x^2))^(1/2)] + 9 [sin^(-1) (x/3)], leaving your answer in the form of [a(b-x^2)^(1/2)] Thank you for helping! it's just a long differentiation and simplification.. what have you done so far?
Hello! So far I got [18 - 2(x^2)]/ square root of [9 - (x^2)]... but it is not in the form the question asked for...
Originally Posted by Tangera Hello! So far I got [18 - 2(x^2)]/ square root of [9 - (x^2)]... but it is not in the form the question asked for... assuming you are correct, multiply it with $\displaystyle \frac{\sqrt{9-x^2}}{\sqrt{9-x^2}}$ (of course, assuming that x is not +-3.. Ü)
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