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Class 12 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsOn real numbers, (a*b=a+b-ab). Which is the identity element of this operation?Class 12Relations and FunctionsBinary operationsMedium MathematicsOn (A={0,1}), (a*b=a+b-ab). What is the identity element?Class 12Relations and FunctionsBinary operationsMedium MathematicsOn real numbers, (a*b=a+b+ab). Is this operation associative?Class 12Relations and FunctionsBinary operationsMedium MathematicsOn (A={1,2,3}), (a*b=\min(a,b)). What is the identity element of this operation?Class 12Relations and FunctionsBinary operationsMedium MathematicsOn (A={1,2,3}), (a*b=\max(a,b)). What is the identity element of this operation?Class 12Relations and FunctionsBinary operationsMedium MathematicsOn real numbers, (a*b=a+b+ab). Which is the identity element for this operation?Class 12Relations and FunctionsBinary operationsMedium MathematicsOn integers, (a*b=a+b-3). What is the inverse element of (5)?Class 12Relations and FunctionsBinary operationsMedium MathematicsIf (a*b=a+b+k) and the identity element is (-4), what is the value of (k)?Class 12Relations and FunctionsBinary operationsMedium MathematicsIf (a*b=a+b-1), what is the inverse of (4)?Class 12Relations and FunctionsBinary operationsMedium MathematicsIf the identity element is (-2) for (a*b=a+b+2), what is the inverse of (5)?Class 12Relations and FunctionsBinary operationsMedium MathematicsIf the identity element is (0) for (a*b=a+b+2ab), what is the inverse of (1)?Class 12Relations and FunctionsBinary operationsMedium MathematicsIf the identity element is (3) for (a*b=a+b-3), what is the inverse of (7)?Class 12Relations and FunctionsBinary operationsMedium MathematicsIf the identity element is (-1) for (a*b=a+b+1), what is the inverse of (2)?Class 12Relations and FunctionsBinary operationsEasy MathematicsIf the identity element is (1) for (a*b=a+b-1), what is the inverse of (3)?Class 12Relations and FunctionsBinary operationsEasy MathematicsIn the operation (a\ast b=2ab), what is the inverse of (4)?Class 12Relations and FunctionsBinary operationsEasy MathematicsIf (a\ast b=a+b-5), what is the inverse of (2)?Class 12Relations and FunctionsBinary operationsEasy MathematicsUnder (a*b=a+b+2) on real numbers, what is the inverse of (3)?Class 12Relations and FunctionsBinary operationsEasy MathematicsIf (a*b=e) and (b*a=e), where (e) is the identity element, what is (b) called for (a)?Class 12Relations and FunctionsBinary operationsEasy MathematicsOn the set ({0,1,2}), (a*b) is the remainder of (a+b) on division by (3). Which is the identity element?Class 12Relations and FunctionsBinary operationsEasy MathematicsWhat is the inverse of (7) under usual addition?Class 12Relations and FunctionsBinary operationsEasy