maths
posted by nick .
for tan2x=3 i get should get two values 71.56 and 251.56 but i dnt knw how to solve to get this two values. pls help me with this. thanx in advance.

reason 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. 
Sorry your numbers were correct, had my calculator set to GRAD, how silly of me.
Just change my numbers, the method is correct.
Respond to this Question
Similar Questions

Maths
The question is "Show that z2 is a factor of P(z)= z^3+mz^2+(3m2)z10m4 for all values of m. For what values of m is (z2)^2 a factor of P(z)? 
PreAlgebra
Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets of values. My Answer: B) two … 
PreAlgebra
Scatter plots are used to look for a pattern of association, or trend, between one set of values two sets of values three sets of values four sets of values My answer: two sets of values 
geography,life sciences,maths lit and consumer studies
am in grade 11 so i dnt knw wht career i wnt to do after finished matric so plz help me 
math
Five coupons of values $2,six coupons of values $3,two coupons of values $5 and two coupons of values $8 are put into a small box.Two coupons are drawn at random from the box without replacement.Calculate the probability that (b)the … 
math help pls pls pls
The graph below plots the values of y for different values of x: Plot the ordered pairs 1, 3 and 2, 4 and 3, 9 and 4, 7 and 5, 2 and 6,18 Which correlation coefficient best matches the data plotted on the graph? 
Maths
The two 4's in the number 420.41 have different values. What is the difference in their values? 
Maths
The two 7's in the number 72.71 have different values. What is the difference in their values 
Maths
The two 4's in the number 420.41 have different values. What is the difference in their values? 
maths
solve: tanx+tan2x+√3tanx tan2x=√3 (0<=x<=360)