4.7 Jeopardy!

Sine

100

Denoted by sin^-1.

Inverse Sine Function (arcsin)

200

sin^-12

Undefined

300

sin[sin^-1 sqrt2/2]

sqrt2/2

400

sin^-1(sin 5π/4)

-π/4

500

arcsin(sin 5π/3)

-π/3

Cosine

100

Denoted by cos^-1.

Inverse Cosine Function (arccos)

200

cos^-1(-1/2)

2π /3

300

cos[cos^-1(-1/2)]

-1/2

400

cos(cos^-1 2/3)

2/3

500

arccos(cos 11π/6)

π/6

Tangent

100

Denoted by tan^-1.

Inverse Tangent Function (arctan)

200

tan^-1 sqrt3

π/3

300

tan^-1[tan(-π/6)]

-π/6

400

tan^-1(tan 2π/3)

-π/3

500

tan[arctan (-π)]

-π