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Help with math


kdani

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Even such exercise will not be alive at the level of maturity. Not with such trappings at all.

I tried with the equation 13t ^ 6-133T ^ 4 + 1296 = 0, and 1176 is not really connected here (solutions: + -NNUMX, + -2, simulated solution: + -3i / [sqrt6])

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Hey, something can look at the link YAHOO from the beginning of the discussion - I do not understand the second stage there, but it seems to be a way to solve the problem without guessing the solution of high-level equation ....

Age - What is the law of the coefficients?

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Hey, something can look at the link YAHOO from the beginning of the discussion - I do not understand the second stage there, but it seems to be a way to solve the problem without guessing the solution of high-level equation ....

Age - What is the law of the coefficients?

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He too came to a two-cube equation: 8u⁶ + 9u⁴- 1 = 0, and made it without much talk to: (u² + 1) (8u⁴ + u² - 1) = 0. The law with the foreground does not always work, the connection of the coefficients is a guess that is often a good guess (by age).

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Uploading 6 ??? To exaggerate, this exercise that if you go through the steps carefully is logical and simple. The distance function that L has to find a minimum after an order looks like this: y = (a ^ 2 + 9) * sqrt (1 + 4a ^ 2) / 2a

tea. a! = 0 and it also makes sense that at this point the tangent is parallel to the X-axis.

The derivative, after comparing it to 0 and arranging the equation, looks like this: 8a ^ 4 + a ^ 2-9 = 0

We define a ^ 2 = t and map the solution is simple. (Edit: this time I edited the message in the notepad and then pasted, just can not seem to go down a line in writing a message).

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