Sunday

December 21, 2014

December 21, 2014

Posted by **nick** on Sunday, September 19, 2010 at 8:46am.

- maths -
**Reiny**, Sunday, September 19, 2010 at 8:54amreason it this way

let 2x = Ø

then tanØ = 3

Ø must be in quadrants I or III

and using your calculator

Ø = 79.52° or 180+79.52 = 259.52°

then 2x = 79.52 or 2x = 259.52

x=39.76° or x = 129.76°

check:

tan(2x39.76) = tan 79.52 = 3

same for the other one.

I don't know how "they" got your answers.

- ARGGG ! maths -
**Reiny**, Sunday, September 19, 2010 at 8:57amSorry your numbers were correct, had my calculator set to GRAD, how silly of me.

Just change my numbers, the method is correct.

**Answer this Question**

**Related Questions**

Pre-Algebra - Scatter plots are used to look for a pattern of association, or ...

Pre-Algebra - Complete the sentence below. Scatter plots are used to look for a ...

Maths - The question is "Show that z-2 is a factor of P(z)= z^3+mz^2+(3m-2)z-10m...

explaining the questions - • the contribution of the each individual member; • ...

Math ~ Check 1 Answer ~ - Complete the sentence below. Scatter plots are used to...

maths. - Alice spent some money on 60 stamps of two different values. The values...

Math - Two values of m satisfy the equation |5m - 11 | - 3m = 9. What is the ...

algebra - how would i find an equation of a line that goes through points(1,6) ...

maths - Choose three options which are true: a) an angle of 150 degrees is ...

Discrete..HELP!!! - how do you solve this..I have idea even where to begin. If |...