20. Find the minimum value of ry+xz+ yz given that r, y, z are real numbers that satisfies the equation r +y² + z² = 1.

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A: Given data:- 2+3=108+4=967+2=636+5=669+5=??

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Q: 1 4. Given A=) 2 2 1 a. A + 2B b. 3A-2B and B = -3 4 -2 2 find

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