Question

if fx = sin(tan^-1x) then find f(-1)

Answer 1

Answer:

f(-1) = 1/√2

Step-by-step explanation:

given, f(x) = sin(tan⁻¹x)

so, f(-1) = sin(tan⁻¹(-1))

            = sin(135°)

            = sin(90°+45°)

            = cos45°

            = 1/√2