Academy Algebra II/Trig8.1: Inverse Trigonometric Functions (PC 4.7)HW: p.612 (14-30 even)

Inverse Trig Functions• Inverse function is denoted by: or

• arcsin x means the angle whose sine is x.(same meaning as inverse)

xy 1sin xy arcsin

Evaluate the expression. p.351

9.) (a) (b)

13.) (a) (b)

19.) (a) (b)

23.) (a) (b)

2

1arccos 0arccos

2

1cos 1

2

2sin 1

Use a calculator to approximate the value. p.352

)75.0arcsin( )7.0(cos 1

98.0tan 1 7.4arctan

Use an inverse trig function to write as a function of x.

Pre-Calc book: p.353 (70)

Pre-Calc book: p.354 (77)

Pre-Calc book: p.312 (65)

Pre-Calc book: p.312 (68)