Engineering Board Exam Reviewer · Inverse Trigonometric Functions · medium

ME Board April 1998: ≤ft[2 ≤ft( 3/2 ) ] is equal to

1. π/3
2. π/4
3. π/16
4. π/2

Answer

B. π/4

Solution

≤ft( 3/2 )=60°. 2 60°=2≤ft( 12 )=1. (1)=45°=π/4.

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2. ECE Board March 1996: Solve for x in the given equation: (2x) + (x) = π/4
3. EE Board March 1998: Solve for x in the equation: (x+1) + (x-1) = (12).
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