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By eleminating theta from the equation...

By eleminating ` theta ` from the equation `a_1 "cosec " theta + b_1 cot theta +c_1=0 and a(2) " cosec " theta + b(2) cot theta + c(2)=0 " then " (b_1c_2-b_2c_1)^(2)-(c_1a_2-c_2a_1)^(2)=`

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