# trigonometry

posted by
**michelle**
.

Find the exact value of each expression(no calculator):

1) sin^2(30degrees) + 1/sec^2(20degrees)

2) sec(50degrees)*cos(50degrees)

posted by
**michelle**
.

Find the exact value of each expression(no calculator):

1) sin^2(30degrees) + 1/sec^2(20degrees)

2) sec(50degrees)*cos(50degrees)