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Temka [501]
3 years ago
14

If x^2+y^2=49,xy=7 find x^3-y^3

Mathematics
1 answer:
Vikki [24]3 years ago
4 0

Answer: 0

Step-by-step explanation: First substitute 7 for x and y

                                             7^3-7^3 = 0

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Evaluate the definite integral. 1/4 csc(2πt) cot(2πt) dt 1/12
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Hey there, hope I can help!

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\mathrm{Multiply\:the\:numbers:}\:4\cdot \:12=48 \ \textgreater \  \frac{dt}{48}\csc \left(2\pi t\right)\cot \left(2\pi t\right)

\mathrm{Multiply\:fractions}: \:a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c} \ \textgreater \  \frac{dt\csc \left(2\pi t\right)\cot \left(2\pi t\right)}{48}

Hope this helps!
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Do anyone know how to do this problems ? Please help!
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