Question

tanx = 1/3 and tany = 1/7 then 2x + y is?

Answer 1

2x = tan^-1 2/3

y = tan^-1 1/7

Answer 2

can u find tan 2x first ?

Answer 3

no, not like that
tan 2x = (2tanx)/(1+tan^2 x)

Answer 4

(2tanx)/(1-tan^2 x).........

Answer 5

oh,yes.....
when u are done finding tan 2x
use tan (A+B)= ..... u know

Answer 6

yes

Answer 7

tan 2a = 3/4

Answer 8

@Yahoo! u were right

Answer 9

2x = tan^-1 3/4

y = tan^-1 1/7


2x + y = (3/4 + 1/7)/1-3/21

Answer 10

25/17

Answer 11

tan 2a is correct... u got 25/17 as final answer ?

Answer 12

yes......

Answer 13

~~~~ tan pie/3

Answer 14

isn't the answer 1 ?

Answer 15

is 25/17 correct

Answer 16

Oh..no...it is 25/25

Answer 17

Yes....it is pie/4

Answer 18

thxxx

Answer 19

welcome :)