The area of a triangle is computed using the formula s=12bc sin A. If the relative errors made in measuring b, c and  calculating S are respectively 0.02, 0.01 and 0.13 the approximate error in A when A=π/6, is

# The area of a triangle is computed using the formula  If the relative errors made in measuring  and  calculating $S$ are respectively 0.02, 0.01 and 0.13 the approximate error in $A$ when $A=\mathrm{\pi }/6,$ is

1. A

2. B

3. C

0.05 degree

4. D

0.01 degree

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