46. Solutions:
47.
To find the number of degrees in the
, fold out the trig
tables (Table of Natural Functions) on the last page of the
program.
NOTE: Tab the trig table folded out for reference during the
remainder of program.
NOTE: Zeros are
added to conform with
the four decimal places
Now, go down the first SIN column to .5000 at the bottom of
given in the trig tables,
therefore:
the page. The size of the angle is found opposite the .5000 in
sin θ 1 = .5000
the DEG column.
sin θ 2 = .5000
When sin θ = .5000,
= __________ .
48.
Another trig function we use is the COSINE function
= 30.0
47.
(abbreviated cos).
The sides used in solving for the cosine function are labeled on the drawing below.
When solving for the cosine of
, the horizontal side is the side ________________
the angle.
1-27
IT0350
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