Calculating the definite integral $\\int_{n_1}^{n_2}ax^b dx$.
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", "advice": "Integrating a function of the form \\[ f(x)=x^n \\] has the integral \\[ \\int_a^b x^n dx = \\left[\\frac{x^{n+1}}{n+1}\\right]_a^b,\\]
\nand \\[\\int_a^b kf(x) dx = k \\int_a^b f(x) dx.\\]
\nTherefore,
\n{advice}
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\n(Give your answers to two decimal places where necessary)
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