Question 18 Not yet answered Marked out of 1,00 Flag question Which one of the following math functions of C++ is used for calculating the cube of x? sqrt(x, 3); Opowix, 3); sqr(x) x; Question 16 Not yet answered Marked out of 1.00 Flag question Which one of the following statement is true about the pointers in C++? Pointers are integer values used as addresses Pointers are special data types in C++ Pointers can't have NULL values Pointer are double values used as addresses Question 17