JEE Main 2019 Mathematics question
Let . If R(z) and I(z) respectively denote the real and imaginary parts of z, then:
Answer: (C)
Solution
z = 2 cos(5π/6) = −√3, a real number.
Let . If R(z) and I(z) respectively denote the real and imaginary parts of z, then:
z = 2 cos(5π/6) = −√3, a real number.