Question

The range of f(x) = 1 + cos^–1x + (cos^–1x)² + … ∞; x ∈ (cos1, 1] is

f(x) = 1 + cos^–1x + (cos^–1x)² + … ∞; x ∈ (cos1, 1] का परिसर है

• A. [1, ∞)
• B. (1, ∞)
• C. [1, ∞) – {2}
• D. (1, ∞) – {2}

Answer 1

The correct option is A [1, ∞)

Solution