Mathematics, 02.02.2020 12:44, 1630013
Write the given expression as an algebraic expression in x. tan(2 cos^-1(x))
Answers: 2
.
⇒ 
![[cosy=\frac{x}{1} =\frac{base}{hypotenuse} ,which\: means, tany = \frac{perpendicular}{base} =\frac{hypotenuse^2-base^2}{base} ]](/tpl/images/0492/9560/d2385.png)
![\bf tan\left[ 2cos^{-1}(x) \right]\implies tan\left[ 2cos^{-1}\left( \frac{x}{1} \right) \right] \\\\\\ \textit{if we say }cos^{-1}\left( \frac{x}{1} \right)=\theta\textit{ that means }tan\left[ 2cos^{-1}\left( \frac{x}{1} \right) \right]\iff tan(2\theta)\\\\ -----------------------------\\\\ cos^{-1}\left( \frac{x}{1} \right)=\theta\implies cos(\theta)=\cfrac{x}{1}\cfrac{\leftarrow adjacent=a}{\leftarrow hypotenuse=c}\\\\ -----------------------------\\\\ ](/tpl/images/0492/9560/0bcee.png)
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 20:30, kcarstensen59070
Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2
Answers: 2
Do you know the correct answer?
Write the given expression as an algebraic expression in x. tan(2 cos^-1(x))...
Questions in other subjects:
English, 09.12.2019 01:31
Mathematics, 09.12.2019 01:31
Biology, 09.12.2019 01:31
Mathematics, 09.12.2019 01:31
English, 09.12.2019 01:31
