Pre calc review

Quadratic equation

100

x^2-7x-18

(x-9)(x+2)

200

7k^2+9k

k(7k+9)

300

7x^2-45x-28

(7x+4)(x-7)

400

2x^2-3x-15=5

{4, − 5/ 2}

500

9n^2 = 4 + 7n

7 + rad193/18 , 7 − rad193/18

Absolute value

100

{−2n + 6} = 6

0,6

200

{1 − 5a} = 29

{− 28/ 5 , 6}

300

{v + 8} − 5 = 2

{−1, −15}

400

5 − 8 {−2n} = −75

{−5, 5}

500

3 − {8x − 6}= 3

3/4

Radians to degrees

100

pi/6

30

200

pi/3

60

300

5pi/6

150

400

7pi/6

210

500

3pi/2

270

Degrees to radians

100

180

pi

200

210

7pi/6

300

90

 pi/2

400

330

11pi/6

500

135

3pi/4

Unit circle

100

sin(30)

1/2

200

cos(60)

1/2

300

sin(120)

rad3/2

400

cos(225)

-rad2/2

500

tan(150)

−√3/3