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Competitive Stats
Q36Section ST (Statistics (Q11–Q65))36 of 65

Quartic plus quadratic in two variables

Consider the function f:R2→Rf : \mathbb{R}^2 \to \mathbb{R} defined by f(x1,x2)=2x14+x22+x2x12f(x_1, x_2) = 2x_1^4 + x_2^2 + x_2 x_1^2. Which of the following statements is correct?

Options

Pick an option to check your answer. In a mock test a wrong answer here costs 2/3 mark.