Answers: 1
![\bf 3tan(2x)=-3\implies tan(2x)=\cfrac{-3}{3}\implies tan(2x)=-1 \\\\\\ tan^{-1}[tan(2x)]=tan^{-1}(-1)\implies 2x=tan^{-1}(-1) \\\\\\ 2x= \begin{cases} \frac{3\pi }{4}\\\\ \frac{7\pi }{4} \end{cases}\implies \begin{cases} 2x=\cfrac{3\pi }{4}\implies \measuredangle x=\cfrac{3\pi }{8}\\\\ 2x=\cfrac{7\pi }{4}\implies \measuredangle x=\cfrac{7\pi }{8} \end{cases}](/tpl/images/0325/7590/2e89b.png)
Another question on Mathematics
Mathematics, 22.06.2019 00:00
The letters g e o r g i a are placed in a bag . if you picked a card and knew it was a vowel , what is the probability that it is an a ?
Answers: 1
Mathematics, 22.06.2019 00:00
In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work
Answers: 2
Mathematics, 22.06.2019 01:00
What is the slope of the line? a. -5/2 b.2/5 c. 5/2 d.7/2
Answers: 1
You know the right answer?
Solve 3 tan 2x = -3 in the interval [0, 2π)...
Questions
Mathematics, 08.04.2021 05:00
English, 08.04.2021 05:00
History, 08.04.2021 05:00
Mathematics, 08.04.2021 05:00
Mathematics, 08.04.2021 05:00
Mathematics, 08.04.2021 05:00
Chemistry, 08.04.2021 05:00
Arts, 08.04.2021 05:00
Physics, 08.04.2021 05:00
Biology, 08.04.2021 05:00
