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.