Find the exact value of each real number y. Do not use a calculator.

y = tan⁻¹ (―√3)

Graph each inverse circular function by hand.

y = arcsec [(1/2)x]

Evaluate each expression without using a calculator.

tan (arccos 3/4)

Evaluate each expression without using a calculator.

sin (2 tan⁻¹ (12/5))

Evaluate each expression without using a calculator.

sec (sec⁻¹ 2)

Evaluate each expression without using a calculator.

cos (tan⁻¹ (5/12) - tan⁻¹ (3/4))

Evaluate each expression without using a calculator.

sin (sin⁻¹ 1/2 + tan⁻¹ (-3))

Find the exact value of each real number y. Do not use a calculator.

y = cos⁻¹ (―√2/2)