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[a]=√(3²+4²+7²)=√74.... z axis to length 7
if angle is @ then cos@=7/√74
=>@=cos-¹(7/√74)
if angle is @ then cos@=7/√74
=>@=cos-¹(7/√74)
jerom76:
Is the answer is answer is correct
i think its corrcet
okay Bro . any I will thanke u for u r ry
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but this is right
okay Bro tnx very much
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