Question

Which value is a solution for the equation cot = 1? 22 O O A. SI O B. 4 O c. O D. 31 4

Answer 1

cot x/2 = 1

Apply inverse both sides:

tan (x/2) = 1

Solve:

x/2 = π/4 + kπ

x = π/2 +2kπ

Possible x values:

π/2, 5π/2, 9π/2,

Answer: 5π/2