What is Built-in functions?

What is the difference between isupper() and toupper() functions?

Write about strcmp() function.

Write short note on pow() function in C++.

What are the information the prototype provides to the compiler?

What is default arguments? Give example.

What is divide and conquer?

What is isdigt ( )? Give example

Write a program using pow( ) and sin( ) function.

What is scope resolution operation?