Evaluating Trig
Reference Angle
Identities
Pythag Identities
Unit conversion
100

sin (270°)

-1

100

-30°

30°

100

(sin^2(x)+cos^2(x))/cot(x)

tan(x)

100

sin2x+cos²x =  


1


100

π radians

180 degrees

200

tan(30°)

sqrt(3)/3

200

770°

50°

200

tan(x) sin(x)

sec(x)


200

1-cos²x

sin²x

200

5π / 6

150

300

sec(225°)

-sqrt(2)

300

110°

70°

300

csc(x)(1-cos^2(x))

sin(x)

300

1+tan²x

sec²x

300

120 degrees

2π / 3

400

cos(5π / 6)

-sqrt(3)/2

400

345°

15°

400

csc(x)

1/sin(x)

400

sec²x-1

tan²x

400

11π / 6

330 degrees

500

csc(300°)

-2/sqrt(3);  -2sqrt(3)/3

500

901°

901° is coterminal with 181°. so the reference angle is 1°.

500

csc(x) cos(x) as a single function

cot(x)

500

1+cot²x

csc²x

500

225 degrees

5π /4

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