Trig- Common Angles

cos(180)

-1 (cos of what angle in Q2)

sin(270)

-1 (sin of what angle in Q3)

cos(90)

0 (cos of what angle in Q1)

cos(270)

0 (cos of what angle in Q3)

sin(0deg)

0 (sin of what angle in Q1)

sin(180)

0 (sin of what angle in Q2)

tan(0deg)

0 (tan of what angle in Q1)

tan(180)

0 (tan of what angle in Q2)

cos(0deg)

1 (cos of what angle in Q1)

sin(90)

1 (sin of what angle in Q1)

tan(45)

1 (tan of what angle in Q1)

cos(60)

1/2 (cos of what angle in Q1)

sin(30)

1/2 (sin of what angle in Q1)

270 degrees

3π/2 (what in degrees)

cos(45)

sqrt2/2 (cos of what angle in Q1)

sin(45)

sqrt2/2 (sin of what angle in Q1)

tan(60)

sqrt3 (tan of what angle in Q1)

cos(30)

sqrt3/2 (cos of what angle in Q1)

sin(60)

sqrt3/2 (sin of what angle in Q1)

tan(30)

sqrt3/3 (tan of what angle in Q1)

tan(90)

undefined (tan of what angle in Q1)

tan(270)

undefined (tan of what angle in Q3)

180 degrees (in rad)

π (what in degrees)

90 degrees

π/2 (what in degrees)

60 degrees

π/3 (what in degrees)

45 degrees (in rad)

π/4 (what in degrees)

30 degrees

π/6 (what in degrees)