Write each of the following in the simplest form:
Assume x = a sinθ
= tan–1
= tan–1
= tan–1
= tan–1
= tan–1
Cos θ = cos2 – sin2 and sinθ = ,cos2 + sin2 = 1
= tan–1
= tan–1
= tan–1
= tan–1(tan)
=
But θ = sin–1
∴ The given equation simplification to sin–1 .