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Evaluating negative limits in integrals- C2? watch

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    Question: Integrate 1/7 x ^ 1/3 +1 with respect to x between -3 and 4.7
    The general antiderivative is 3/28 (x ^ 4/3) + x.
    But when I try to work out -3 ^ 4/3 on my calculator I get a syntax error even though it is a TI-84 with complex number capacity. How would you actually work it out?
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    (Original post by ScheduleII)
    Question: Integrate 1/7 x ^ 1/3 +1 with respect to x between -3 and 4.7
    The general antiderivative is 3/28 (x ^ 4/3) + x.
    But when I try to work out -3 ^ 4/3 on my calculator I get a syntax error even though it is a TI-84 with complex number capacity. How would you actually work it out?
    THe power of a negative number is interpreted by calculator for only integer exponent. See (-1)^(1/3).
    Try (-3)^4 first then the cubic root.
 
 
 
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Updated: March 29, 2011
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