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How can I get my local weather channel? What is the difference between the Obeserver Effect and the Uncertainty Principle ? If f(x) is differentiable for all of x find the value of a and b : f(x)=cos (x) if x<0 =ax+b If x>or equal to zero? Find the equation of the line which:
has a gradient of 3 and passes through the point (1, 8)? 1 and 3 please urgent! Thank you!!!?