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Whats the x and y of a quadratic function like this, X^2-5x, how do you solve for it? Domain and range? What is 1 third of 2.5 litres of paint? A double stranded DNA structure of a child contains 305 "adenine" of many cytosine does this DNA contain? Prove that tanA=cosec2A-cot2A.Deduce the of value tan(45/2)? Is brain fog bad luck?