The quadratic equation ax² +bx+c=0 has roots tan a and tan ß. (a) Show that tan(a+ß) b c-a

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A: Considering

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Q: 1.) Solve for x and y x-y = 20   2x +3Y= 40 Substitution Method

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A: 0.14+0.014+0.0014....

Q: 12. Find a quadratic model for the set of values. a. X y Koy -3 6 -10 + -1 -2 08-6 + 40 8 8 40 10 8…

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A: We can see that from given graph.The red colour graph is of y=xand The dashes type graph is of y=x-2

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A: y' + 9y sin 9x  =  9 ecos9x   ,  y(0) = -2.5

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A: The given system of differential equation is:dxdt=-x+ydydt=2xx(0)=0,   y(0)=2

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Q: The matrix A = -2 -5] Find an eigenvector for this eigenvalue. [8] has an eigenvalue A = -6. 1P

A: As per guidelines, we are supposed to answer only one question.

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Q: Find the value of the determinant. 12 - 7 - 4 3 OA. -8 OB. 8 OC. 64 O D. 4

A: 12-7-43to find its determinant

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