Find the magnitude of the resultant force and the angle it makes with the positive x-axis. (let a = 100 n and b = 300 n. round your answers to one decimal place.)

Yes, two vertical lines can be complementary

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*