Inverse Trig (Flashcard 3) degrees(45 sec)

Front

What is the range of the inverse secant function, Arcsec(x)?

Back

The range of the inverse secant function, Arcsec(x), is [0, π/2) ∪ (π/2, π].

Front

What is the value of Arcsec(2)?

Back

Arcsec(2) = 60°.

Front

What is the value of Arcsec(-2)?

Back

Arcsec(-2) = 120°.

Front

What angles correspond to cos Θ = -1/√2 in the range 0 ≤ Θ ≤ 360°?

Back

Θ = 135°, 225°.

Front

What is the value of cos(300°)?

Back

cos(300°) = 1/2.

Front

What is the value of sin(210°)?

Back

sin(210°) = -1/2.

Front

What is the value of tan(45°)?

Back

tan(45°) = 1.

Front

What is the relationship between the angles 135° and 225° in terms of cosine?

Back

Both angles have the same cosine value of -1/√2.

Front

What is the value of Arcsec(1)?

Back

Arcsec(1) = 0°.

Front

What is the value of sin(300°)?

Back

sin(300°) = -√3/2.