What is the value of sin(B - C) cos(A - D) + sin (A - B) cos(C - D) + sin(C - A) cos (B - D)?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e 0
Put A = B = C = D
= sin(B - C) cos(A - D) + sin (A - B) cos(C - D) + sin(C - A) cos (B - D)
= 0 + 0 + 0
= 0