2-5 x, and the charctrestic equation of this system is 1-2 Let x= fA)=12+1, then the foundemntal set of real valued functions is Select one: a. cost sint ut) = 2cost-sint 2sint+cost O b. cost sint u(t) = 2cost 2sint cost sinf 2cost+ sint 2sint-cost d. NOT е. -cost sint uf)= 2cost+ sint 2sint + cost

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.