Mathematics

Use mathematical table to evaluate (cos40° – sin30°)

Use mathematical table to evaluate (cos40° – sin30°)

  • A.
    -0.2660
  • B.
    -0.0266
  • C.
    0.0266
  • D.
    0.2660
  • E.
    1.5320
Correct Answer: Option D
Explanation

(cos 40° – sin 30°)

= 0.7660 – 0.5

= 0.2660