Question

Find the value of tan29°11'.
(Refer the trigonometric table for the values)

• A. 0.5585
• B. 0.8555
• C. 0.5635
• D. 0.6123

Answer 1

The correct option is A 0.5585

We can write,
29°11' = 29°6' + 5'
From the table we have, tan29°6' = 0.5566
Mean difference for 5′ = 19

tan29°6' = 0.5566
5′ = + 19 (Mean difference to be added for tan)
____________________
tan29°11' = 0.5585