Answer:
Follwing is the python code:-
word=str(input("Enter the string\n"))
new=word[0:3] #expression for first three characters of the string.
print(new)
Output:-
Enter the string
chandelier
cha
Explanation:
The expression word[0:3] is for extracting first three characters form the string.
word[0:3] = It extracts characters from index 0 to index 2 it does not include 3.3 is excluded.
Answer:
Ans1.
double calc_a;
calc_a=Math.pow(3.0,2.0)+Math.sqrt(9);
Ans2.
double calc_b;
calc_b=((12.0/3.0)-(2.0*4.0));
Ans 3.
double calc_c;
calc_c=(Math.sqrt(16.0)*(7.0+9.0));
Ans 4.
double calc_d;
calc_d=Math.pow(7.0,2.0)/Math.sqrt(49.0);
Explanation:
The expressions are done with Java in answer above.
D. It is used to add sound effects.
Hope this helps!
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