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Mathematics, 27.08.2020 04:01 61497

5. Find k if the lines 7x+9y= 1 and 11x + 11y = 1 are parallel 6. Find k if the lines 3x = 5y = 9 and 13x + ky = 1 are perpendicular,

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5. Find k if the lines 7x+9y= 1 and 11x + 11y = 1 are parallel 6. Find k if the lines 3x = 5y = 9 a...
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