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Sagot :

PM: cote adjacent

MN:côte oppose

PN:côte hypotenuse

donc :COTE ADJACENT PM= 5,3cm

:COTE HYPOTENUSE PN= 9cm

SOH :SINUS=COTE OPPOSE/HYPOTENUSE

CAH :COSINUS=COTE ADJACENT/HYPOTENUSE

TOA :TANJANTE=COTE OPPOSE / COTE ADJACENT

DONC LN VA UTILISE : CAH :COSINUS

DONC : cos MPN=5,3/9

ArcCos(5,3/9)=resulta

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