REPASO BIMESTRAL:
1. Calcular: E = 26senß - 10cos
26.5/13-10.3/5
10-6 =4
2.En un triangulo recto en B
Reduce: E = bsenA + c cscC - acscA
b.a/b + c.b/c - a.b/a = a
3. Calcula:x(8tan16 -cot37) = 15cos53 + 43sen 60
x(8.7/24 - 4/3 = 15.3/5 + 43 . 3/2
x = 9 + 18
x = 27
4. Calcula : 4xcos60 + 12cot37 = 5x sen37 - 24cot74
4x.1/2 + 1.4/3 = 5x.3/5 - 24.7/24
2x + 16 = 3x - 7
x = 23
5. calcula cot b
21/32
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