# use the double angle formula to find the exact value of each expression 90

use the double angle formula to find the exact value of each expression

90<theta<180

sin(theta)=3/5

sin(2theta)

cos(2theta)

tan(2theta)

270<theta<360

tan(theta)=-5/12

sin(2theta)

cos(2theta)

tan(2theta)

180<theta<270

cos(theta)=-2/ sqarerootof (13)

sin(2theta)

cos(2theta)

tan(2theta)

0<theta<90

sin(theta)=2sqarerootof3/5

sin(2theta)

tan (2theta)

cos (2theta)