Cevap:
AD=3V5 ve AC=3V13
Alan ADC=18
18=1/2*3V5*3V13,*sin
4/V65=sinalfa
Cos teo
36=45+117-2*3V5*3V13*cos
126=2*3V5*3V13*cos
7/V65=cosalfa
Tanalfa=sinalfa/cosalfa=4/V65:7/V65
=4/7