Engineering Board Exam Reviewer · Trigonometric Identities · easy

ME Board April 1996: Simplify the equation 2 (1+ 2 )

1. 1
2. 2
3. 2 2
4. 2

Answer

A. 1

Solution

2 (1+ 2 )= 2 · 2 = 2 ·1/ 2 =1.

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