If ax/cos(-) + by/sin(-) = a² - be , ax sin (-)/cost(-) = 0 , prove that (ax)⅔ + (by)⅔ = (a²-b²)⅔.

If ax/cos(-) + by/sin(-) = a² - be , ax sin (-)/cost(-) = 0 , prove t

1.	If ax/cos(-) + by/sin(-) = a² - be , ax sin (-)/cost(-) = 0 , prove that (ax)⅔ + (by)⅔ = (a²-b²)⅔.
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