Asquare matrix a e rn is said to be skew-symmetric if a =-a prove that if a is skew-symmetric, then x'ax = 0 for all x e r". (hint the t t t quantity x'ax is scalar so that (x'ax) = x'ax)

you cant answer this dummy

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answer is 144

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b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

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1