Question

Using trigonometric tables, find the approximate value of tan 39°.

Answer 1

Given: Using trigonometric tables, find tan 39°.

Step-wise calculation:

1. Locate the row for 39° in the tangent (tan) table.
2. Read off the value for tan 39° from the table: tan 39° = 0.8098.
3. The table value is given to four decimal places, so no interpolation is needed.

tan 39° ≈ 0.8098 approx., to 4 decimal places.