Question

All the nulls occur at (-1, 1) in the Chebyshev polynomial.

(a) True

(b) False

I have been asked this question during an online interview.

I'm obligated to ask this question of Adaptive Array in section Phased, Adaptive and Binomial Arrays of Antennas

Answer 1

Correct option is (b) False

For explanation I would say: All the nulls in the Chebyshev polynomial occur in the range -1≤ x≤1.

(-1, 1) here is representing a point. So it is false.