engineering mathematics MCQ #5586

The expression cos(20°)cos(40°)cos(80°) equals

engineering mathematics MCQ #5586

  1. Question 1

    Q1. The expression cos(20°)cos(40°)cos(80°) equals

    • A) 1/8
    • B) 1/4
    • C) 1/2
    • D) 1

    Answer: 1/8

    Explanation: Using the formula for cos(A)cos(B)cos(C), we simplify to 1/8