PDF chapter test TRY NOW

1. Find the value of \(\theta\) if \(cos \ \theta = 0.0410\)
 
Answer:
 
\(\theta =\)
 
2. Find the value of \(\theta\) if \(tan \ \theta = 7.5958\)
 
Answer:
 
\(\theta =\)
 
3. Verify \(1 + tan^2 \ 30^{\circ} = sec^2 \ 30^{\circ}\).
 
Answer:
 
LHS: \(1 + tan^2 \ 30^{\circ} =\) ii
 
RHS: \(sec^2 \ 30^{\circ} =\) ii
 
Since LHS \(=\) RHS, then \(1 + tan^2 \ 30^{\circ} = sec^2 \ 30^{\circ}\).
 
Hence, we proved.