In physics, it is important to use mathematical approximations.(a) Demonstrate that for small angles (< 20°)                        tan a ≈ sin a ≈ a =  (πa')/(180°)where a is in radians and a' is in degrees. (b) Use a calculator to find the largest angle for which tan a may be approximated by a with an error less than 10.0%.

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In physics, it is important to use mathematical approximations.
(a) Demonstrate that for small angles (< 20°)
                        tan a ≈ sin aa =  (πa')/(180°)
where a is in radians and a' is in degrees. (b) Use a calculator to find the largest angle for which tan a may be approximated by a with an error less than 10.0%.

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