Answer:
Therefore the inverse function of 
is 
Explanation:
We need to find the inverse of function
Function Inverse definition :
Simplify
Therefore the inverse function of is
Answer:
There is an error in "String s=s1-s2 ";
Explanation:
In java programming, we can subtract subtract two strings variable with "-" operator.Java programming does not support an overload of the '-' operator.In java, we can use only "+" operator to append two strings variable.There is no such method to subtract strings in java.Therefore in the given code String s=s1-s2 will give an "bad operand type" error because we can not subtract one string variable from the second string variable.
The basic difference between RAM and ROM memory is RAM is read/write while ROM Is read-only.
Explanation:
- A ROM, non-volatile memory, does not use to store data, but RAM is volatile and requires power to store data.
- ROM is not given usually as a specification, but RAM is typically specified when buying a computer.
- We can write data only once in ROM. However, once it is written, we can read it any number of times. RAM is the main memory in a computer, and read from and write to it much faster than other storage types. RAM is used to store files in use on the computer.
Hence the basic difference between RAM and ROM memory is RAM is read/write while ROM Is read-only.
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Answer:
Correct answer is option B (The reason for using supertypes is to minimize the number of nulls and to minimize the likelihood of redundant relationships)
Explanation:
Entity supertype
A entity supertype is a generic entity type which is related with one or more subtypes.
Use of entity supertype:
The reason for using entity supertype is to reduce redundant relationships and it is also used to minimize the number of nulls.
