Sunday, 4 January 2026

If A=[(3,x),(0,1)] and B=[(9,16), (0,-y)], find x and y, when A²=B. [icse 2015]



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If find x. 1/(9!) + 1/(10!) = x/(11!).

  Here n! is read as n factorial. It can be written as n(n-1)! or n(n-1)(n-1)!