Se sabe que senα=cosβ siempre y cuando α + β = 90°, entonces:
2x + 17° + 3x + 13° = 90°
5x = 90° - 30°
x = 60° / 5
x = 12°
E = 2sen5x + 3ctg(x + 18°)
E = 2(sen60°) + 3(ctg30°)
E = 2(√3/2) + 3(√3)
E = √3 + 3√3
E = 4√3
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Se sabe que senα=cosβ siempre y cuando α + β = 90°, entonces:
2x + 17° + 3x + 13° = 90°
5x = 90° - 30°
x = 60° / 5
x = 12°
E = 2sen5x + 3ctg(x + 18°)
E = 2(sen60°) + 3(ctg30°)
E = 2(√3/2) + 3(√3)
E = √3 + 3√3
E = 4√3