10. Let Is f convex, concave, or neither? ƒ(x1, x2) = x² − I1X₂ + x² + 3x₁ − 2x₂ +1 (71; 72) € R². -

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Q: The real part of sech (2-j3) is -3.7245 -3.5906 O 0.0403 O -0.0106 -0.5309 1.0357

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Q: d) Given a and r = -5, calculate S6. 2 e) Given tn = 3tn-1+2 and t4 = (-2), find ts.

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Q: a) s> a O a b O C с O d b) s <a c) s = a = { Leat موجود أذا كان d) sza

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Q: (a) Find the solution set of the homogeneous linear system below. x + y + 2z = 0 - y3z + w=0…

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