Question: When is small, find the approximate values of: a sin 40 tan 20 30 b 1 - cos20 tan 20 sin 3 tan0 -

When θ is small, find the approximate values of:a sin 40 tan 20 30 b 1 - cos20 tan 20

a sin 40 tan 20 30 b 1 - cos20 tan 20 sin 3 tan0 - 0 sin 20

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