# math

posted by
**Aly**
.

3. Find the exact value of the following, show all work.

a. sin^2 (75^0)/sin45, cos^2, 30^0

b. tan(135) + sin(30)cot(120)

posted by
**Aly**
.

3. Find the exact value of the following, show all work.

a. sin^2 (75^0)/sin45, cos^2, 30^0

b. tan(135) + sin(30)cot(120)