ปัญหา 9เลือกประเภทWhat is the polar form of the complex number 1 + i?√2 (cos π/4 + i sin π/4)2 (cos π/4 + i sin π/4)√2 (cos π/2 + i sin π/2)2 (cos π/2 + i sin π/2)
ปัญหา 11เลือกประเภทWhat is the fourth root of 1?1, i, -1, -i1, -1, √2, -√21, i, √2, -√21, -i, √2, -√2
ปัญหา 12เลือกประเภทWhat is the principal square root of -i?1/√2 - i/√2-1/√2 + i/√21/√2 + i/√2-1/√2 - i/√2
ปัญหา 13เลือกประเภทWhat does the modulus of a complex number represent geometrically?The slope of the lineThe distance from the originThe angle with the x-axisThe area of the triangle formed
ปัญหา 15เลือกประเภทWhat is the effect of rotating a complex number by 90 degrees counterclockwise?Multiply by iDivide by iAdd iSubtract i