dæ Evaluate: x/9x² +4 A) None of the above V9x² + 4 + 2 B f (x) = -2 ln +C %3D 3x © s(12) = -- In f (x) = - V9x2 + 4 + 2 +C 3x 9x2 + 4 + 2 (D f (2) = -- In +C

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A: 1. ∑r=18r3+2r+r22.a) 3x2+5x-45x2-x+7b) x2+5x-42x2-3x+1

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A: Explained below

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A: I have provided this answer with full description in step-2.

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A: We know that ∑r=1nr = n (n+1)2 ∑r=1nr2 = n (n+1) (2n+1)6 ∑r=1nr3 = n (n+1)22

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A: A= &lt;1,0,2&gt; B= &lt;6,-2,3&gt; projAB = (A*B)A/[A]2 [A]2 = (12+(0)2+(2)2)2 [A]2 = 5 A*B = 6+0+6…

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