Question

tan3x=-1 , solve for all solutions

Answer 1

\[3x=\frac{\pi}{4}, \frac{5\pi}{4}, \frac{9\pi}{4}, \frac{13\pi}{4}, \frac{17\pi}{4}, \frac{21\pi}{4}\]

Answer 2

http://www.wolframalpha.com/input/?i=solve+tan%283+x%29%3D%3D-1

Answer 3

\[x=\frac{\pi}{12}, \frac{5\pi}{12}, \frac{9\pi}{12}, \frac{13\pi}{12}, \frac{17\pi}{12}, \frac{21\pi}{12}+2\pi n\]

Answer 4

would the answers be the same if the q was solve for cot(3x)=-1

Answer 5

Oh boy. I didn't see the negative sign. The answers for 3x should be in quadrants 2 and 4 instead of 1 and 3. So replace the numerators with these numbers:

Answer 6

\[3\pi, 7\pi,11\pi, 15\pi, 19\pi, 23\pi\]

Answer 7

And yes, since the cot is the reciprocal of the tangent, and since the reciprocal of -1 is -1, the answers would be the same.

Answer 8

can u help me with another one

Answer 9

Post it.

Answer 10

kay here it is csc^2(2x)-csc(2x)-2=0

Answer 11

\[\csc ^2(2x)-\csc (2x)-2=0\]

Answer 12

\[(\csc (2x)-2)(\csc (2x)+1)=0\]

Answer 13

\[\csc (2x)=2 , \csc (2x)=-1\]

Answer 14

\[2x=\frac{\pi}{6}, \frac{5\pi}{6}, \frac{13\pi}{6}, \frac{17\pi}{6}\]

Answer 15

\[x=\frac{\pi}{12}, \frac{5\pi}{12}, \frac{13\pi}{12}, \frac{17\pi}{12} + 2\pi n\]

Answer 16

\[\csc (2x)=-1\]

Answer 17

oh and can u help me with a true and false question for this equeation: 3tan^2(2x)-1=0

Answer 18

I already got the question above lets move on

Answer 19

This equation has 8 solutions on the domain .






is one of the solutions of this equation.






The general solution of this equation is .







is one of the solutions of this equation



which option is not true

Answer 20

\[2x=\frac{3\pi}{2}, \frac{7\pi }{2}, x=\frac{3\pi}{4}, \frac{7\pi}{4} + 2\pi n\]

Answer 21

its missing some info

Answer 22

So how am I supposed to answer it?

Answer 23

so for the first option it was supposed to say in the domain of 0 to 2pi

Answer 24

the second option was supposed to say 13pi/12 is one of the solutions

Answer 25

8 solutions.

Answer 26

so the eight solutions one is the false one

Answer 27

one last question for you

Answer 28

I cannot tell which one is the false one because the answers are not posted.