A,B,C,D are consecutive vertices of a cyclic quadrilateral such that 12 Tan A-5 = 0 and 5 cos B +3=0 then the quadratic equation whose roots are cos C and Tan D is x²+x+=0 then which of the following is true. (1.mn has no common factor other than 1 and 1>0)
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what is the synonyms for the word "creest"?
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