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tagx = ctgy
secx = cscy
→x+y=90°
otra propiedad : secx=1÷cosx
sen(4x+10).tag(3x+30).secx=tag(3x+30)
sen(4x+10).1÷cosx=1
sen(4x+10)=cosx
⇒4x+10+x=90°
5x=80°
x=16°
P=6.tag²30°+7.tag²45°
P=6.(1÷∛3)² + 7.(1)²
P=6÷3 + 7
P=2+7=9⇒RPTA