Engineering Board Exam Reviewer · Trigonometric Identities · easy

ECE Board April 1999: If 2 A is 5/2, the quantity 1- 2 A is equivalent to

  1. 2.5
  2. 1.5
  3. 0.4
  4. 0.6

Answer

C. 0.4

Solution

2 A = 1/ 2 A = 1/5/2 = 2/5 = 0.4.

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