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أوجد متجه وحدة له اتجاه المتجه v  نفسه إذا كان : −1 −5 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4HqaqFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeyipaWJaaGymaiaaiAdacaGGSaGaaGOmaiaacYcacaaI4aGaeyOpa4daaa@3C0A@ = v                
26 26 , −5 26 26 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4HqaqFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeyipaWJaeyOeI0YaaSaaaeaacaaIYaWaaOaaaeaacaaI1aGaaG4maaWcbeaaaOqaaiaaiwdacaaIZaaaaiaacYcadaWcaaqaaiaaiEdadaGcaaqaaiaaiwdacaaIZaaaleqaaaGcbaGaaGynaiaaiodaaaGaeyOpa4daaa@4125@  
2 20 20 , 7 20 20 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4HqaqFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeyipaWJaeyOeI0YaaSaaaeaacaaIYaWaaOaaaeaacaaI1aGaaG4maaWcbeaaaOqaaiaaiwdacaaIZaaaaiaacYcadaWcaaqaaiaaiEdadaGcaaqaaiaaiwdacaaIZaaaleqaaaGcbaGaaGynaiaaiodaaaGaeyOpa4daaa@4125@  
2 23 23 , 7 23 23 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4HqaqFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeyipaWJaeyOeI0YaaSaaaeaacaaIYaWaaOaaaeaacaaI1aGaaG4maaWcbeaaaOqaaiaaiwdacaaIZaaaaiaacYcadaWcaaqaaiaaiEdadaGcaaqaaiaaiwdacaaIZaaaleqaaaGcbaGaaGynaiaaiodaaaGaeyOpa4daaa@4125@  
2 53 53 , 7 53 53 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4HqaqFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeyipaWJaeyOeI0YaaSaaaeaacaaIYaWaaOaaaeaacaaI1aGaaG4maaWcbeaaaOqaaiaaiwdacaaIZaaaaiaacYcadaWcaaqaaiaaiEdadaGcaaqaaiaaiwdacaaIZaaaleqaaaGcbaGaaGynaiaaiodaaaGaeyOpa4daaa@4125@  
26 26 5 26 26 MathType@MTEF@5@5@+=feaagCart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLnhiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqtubsr4rNCHbGeaGqiVu0Je9sqqrpepC0xbbL8F4HqaqFfpeea0xe9Lq=Jc9vqaqpepm0xbba9pwe9Q8fs0=yqaqpepae9pg0FirpepeKkFr0xfr=xfr=xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaGaeyipaWJaeyOeI0YaaSaaaeaacaaIYaWaaOaaaeaacaaI1aGaaG4maaWcbeaaaOqaaiaaiwdacaaIZaaaaiaacYcadaWcaaqaaiaaiEdadaGcaaqaaiaaiwdacaaIZaaaleqaaaGcbaGaaGynaiaaiodaaaGaeyOpa4daaa@4125@  
            
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