Question : If
Option 1: –1
Option 2: 2
Option 3: 1
Option 4: 0
Correct Answer: 1
Solution :
Given:
The given expression is
=
The first term of the expression is
The second term of the expression is
The third term of the expression is
Substitute the given values from equation (1) in the expression, we get,
Hence, the correct answer is 1.