# Math

posted by .

prove: tan10+tan70+tan100=tan10.tan70.tan100

## Similar Questions

1. ### trig

prove that :tan20 tan30 tan40 =tan10
2. ### campridge trigonometry

prove that ; tan20 . tan30 . tan40 = tan10
3. ### trig

a plane is flying at an altitude of x with the distance at 800 meters with an angle of 70 degress. what equation would you use to solve. tan70= x/800 tan70= 800/x sin70= x/800
4. ### 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.) sin25‹cos35‹sin‹35 …
5. ### Geometry

Without using a calculator compare the values of tan60 and tan70. Explain your reasoning.
6. ### trig

tan200(cot10-tan10)
7. ### trig

tan200(cot10-tan10)
8. ### math

calculate the value of (1 sec20¡ã cot20¡ã)(1-cosec20¡ã tan70¡ã)
9. ### maths

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

More Similar Questions