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Mathematics, 21.05.2021 14:00 playaajosh

express the equation of x/a + y/b =1 to the form of xcosA +ysinA= p and prove that 1/a^2 +1/b^2 =1/p^2.​

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express the equation of x/a + y/b =1 to the form of xcosA +ysinA= p and prove that 1/a^2 +1/b^2 =1/p...
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