Engineering Board Exam Reviewer · Trigonometric Identities · medium

Simplify: 1 - ≤ft(2 ) ≤ft(2 )

1. ≤ft( )
2. ≤ft( )
3. 2 ≤ft( )
4. ≤ft( )

Answer

A. ≤ft( )

Solution

1- 2 / 2 =2 2 /2 = .

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