# trig

tan200(cot10-tan10)

## Similar Questions

1. ### trig

tan200(cot10-tan10)
2. ### Math

Solve without the use of a calculator: sin20(tan10+cot10) I know it should equal two but I don't know how to get there
3. ### trig

prove that :tan20 tan30 tan40 =tan10
4. ### Math

prove: tan10+tan70+tan100=tan10.tan70.tan100
5. ### Pre-Calculus

I need help on these problems they are from my study guide and i don't have a clue on how to do these 3 problems and if anyone can show the steps and somewhat explain the steps so i can do it myself next time. 1.)
6. ### maths

Tan100+4sin100=? As tan(90+10)+4sin(90+10) -cot10+4cos10 Aftr that i don't know what to do
7. ### campridge trigonometry

prove that ; tan20 . tan30 . tan40 = tan10
8. ### Trigonometry

how do i evaluate this? 1+tan 200(degrees) tan 80(degrees)/tan200(degrees)-tan 80(degrees)
9. ### math

could someone please refresh my memory of the basic trig functions? ex) cos^2 + sin^2 = 1? That is a trig identity. http://www.sosmath.com/trig/Trig5/trig5/trig5.html
10. ### precalc

Suppose that z1=6-8i. Find: A. The Trig Form of the complex number z1, where your theta is in degrees. B. The Trig form of z1*z2, where z2=5[cos(60degrees)+isin(60degrees)] C. The Trig Form of (z1)^4

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