i1=12.7cos∠30°+j12.7sin∠30°=11+j6.36 A，i2=11cos∠-60°+j11sin∠-60°=5.5-j9.5 A，i1+i2=16.5-j3.17=√(16.5²+3.17²)∠arctan(-3.17/16.5)°=16.8∠-10.9° A，i1+i2=16.8√2(314t-∠10.9°) A。
