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Question Number 109414 by qwerty111 last updated on 23/Aug/20

	Answered by Dwaipayan Shikari last updated on 23/Aug/20

	$t a n 20 ° + 4 s i n 20 °$ $\frac{1}{c o s 20 °} (s i n 20 ° + 4 s i n 20 ° c o s 20 °)$ $\frac{1}{c o s 20 °} (s i n 20 + 2 s i n 40 °)$ $\frac{1}{c o s 20 °} (2 s i n 30 ° c o s 10 ° + s i n 40 °)$ $\frac{1}{c o s 20 °} (c o s 10 ° + c o s 50 °)$ $2 c o s 30 ° = \sqrt{3}$ $S o t a n 20 ° + 4 s i n 20 ° + 1 = \sqrt{3} + 1$
	Answered by bobhans last updated on 23/Aug/20

	$\approx 2.732050808$
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