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dimulka [17.4K]
3 years ago
12

(sin30/1+cos30) + (1+cos30/sin30)

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
8 0

Answer:

1

11111222223333334444554444667899ppojhgbsicudjejviwoiri3iw

Kazeer [188]3 years ago
8 0

Answer:

4

Step-by-step explanation:

\frac{sin 30}{1+cos 30} +\frac{1+cos 30}{sin 30} \\=\frac{sin 30(1-cos30)}{(1+cos30)(1-cos30)} +\frac{1+cos30}{sin 30} \\=\frac{sin30(1-cos30)}{1-cos^230 } +\frac{1+cos30}{sin 30} \\=\frac{sin 30(1-cos30)}{sin^2 30} +\frac{1+cos30}{sin30} \\=\frac{1-cos30}{sin30 } +\frac{1+cos30}{sin30} \\=\frac{1-cos30+1+cos 30}{sin 30} \\=\frac{2}{sin 30} \\=\frac{2}{\frac{1}{2} } \\=4

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