Trig
posted by Brittany .
1. Establish the identity:
sin(theta+3pi/2)=cos(theta)
2. Find the exact value of 2(theta) if sin(theta)=5/13
3. Show that: csc2(theta)cot2(theta)=tan(theta)
4. Find the exact value of tan(cos^1(square root of 3/2)
5. Approximate the value rounded to two decimal places: csc^1(4)
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