Question

SOLVE THIS DEFINITE INTEGRAL

Answer 1

All x satisfying the inequality (cot⁻¹ x)² –7(cot⁻¹ x) + 10 > 0, lie in the interval:

(A) (–[infinity], cot5) ∪ (cot4, cot2) (B) (cot2, [infinity])

(C) (–[infinity], cot5) ∪ (cot2, [infinity]) (D) (cot5, cot4)