Show that f Class 11 Maths Ch 10 Miscellaneous Video is invertible. Find the inverse of f. Here, W is the set of all class 12 maths ch 10 Class 11 Maths Ch 10 Miscellaneous Online miscellaneous days numbers. Similarly, the possibility of n being even and m being odd can also be ignored. Now, if both n and m are odd. Hence, the inverse of f is f. Thus, the case of x being positive and y being negative can be ruled. Under a similar argument, x being negative and y being positive miscelaneous also be ruled vlass.
For this, consider element 1 in co-domain N. It is clear that this element is not an image of any of the elements in domain N. Given a non empty set X, consider P X class 12 maths ch 10 miscellaneous days is the set of all subsets of X.
Define clas relation R in P X as follows:. Is R an equivalence relation on P X? Justify your answer. Hence, R is not an equivalence relation as it is not symmetric. Dzys F -1 of matys following functions F from S to T, if it exists.
Hence, F is not invertible i. Then number of relations containing 1, 2 and 1, 3 which are. The smallest relation containing 1, 2 and 1, 3 which is reflexive and symmetric, but not transitive is given by:. Now, if we add any two pairs 3, 2 and 2, 3 or both to relation R, then relation R will become transitive. Then number of equivalence relations class 12 maths ch 10 miscellaneous days 1, 2 is. The smallest equivalence relation containing 1, 2 is given by.
Now, we are left with only four pairs i. If we odd any one pair [say 2, 3 clas to R1, then for symmetry we must add 3, 2. Also, for transitivity we are required to add 1, 3 and 3, 1.
Hence, the only equivalence relation bigger than R1 is the universal relation. This shows that the total number of equivalence relations containing 1, 2 is two.
Then, does fog and gof coincide in 0, 1]? Exercise 1. Previous Post Next Post. Contact clas. LinkList ul li ul'. Tabify by Templateify v1.
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