Question

Using tables, find the values of : sin 83° 12 '​

Answer 1

Given: The trigonometric term sin 83° 12 '​

To find: The value of the above trigonometric term.

Solution:

• Now we have given sin 83° 12 '​

• We know that 1 minute = 1/ 60 degree. So:

            12 minutes = 12/60 degree

            2/10 = 1/5 minutes

            0.2 degree.

• So it becomes sin (83 + 0.2) = sin(83.2°)

• Now from calculation :

            sin(83.2°) = 0.9929

Answer:

            So the value of sin(83.2°) is 0.9929 .