If A=[(1, -1), (-1, 1)] and B=[(1, 1), (...

If `A=[(1, -1), (-1, 1)] and B=[(1, 1), (1, 1)]` then AB=____.

If A=[(1, -1), (-1, 1)] and B=[(1, 1), (1, 1)] then AB=.
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If |a|<1 and |b|<1, then the sum of the series 1+(1+a)b+(1+a+a^2)b^2+(...
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Prove that: (a^(-1)+b^(-1))^(-1)=(ab)/(a+b)
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Prove that : cos ^(-1) ((1- a^(2))/(1+a)) + cos ^(-1)((1-b^(2))/(1+b...
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Prove that |{:(1,,ab,,(1)/(a)+(1)/(b)),(1 ,,bc,,(1)/(b)+(1)/(c)),( 1,,...
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Prove that (a+b)^(-1)(a^(-1)+b^(-1))=(1)/(ab)
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सिद्ध कीजिए कि tan^(-1)a+tan^(-1)b=cos^(-1)""(1-ab)/(sqrt((1+a^(2...
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(i) सिद्ध कीजिए कि cos^(-1)((1-a^(2))/(1+a^(2)))+cos^(-1)((1-b^(2))...
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tan ^(-1)"" a+ cot ^(-1)""b=cot ^(-1) ""(b-a)/(1+ab)
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