Trig Question (1 Viewer)

Riceee · Mar 29, 2011

How do I do this?
$2cos(2t + \frac{\pi}{6} )= 0$
Find all positive solutions

Riceee · Mar 29, 2011

what do i do here

SpiralFlex · Mar 29, 2011

Riceee said:
what do i do here

What's the domain of your equation? There are infinite solutions.

Riceee · Mar 29, 2011

find all
answer is expressed in forms of n where n is a real +ve integer so yea...

SpiralFlex · Mar 29, 2011

Oh, you meant general solutions.

Riceee · Mar 29, 2011

so how do you solve it with gsolutions so that its all +ve

Drongoski · Mar 29, 2011

Riceee said:
so how do you solve it with gsolutions so that its all +ve

$\therefore 2t + \frac {\pi}{6} = \frac{\pi}{2} + 2n\pi ( n=0,1,2,3 \cdots )$

$\therefore t = \frac{\pi}{6} + n\pi$

XTsquared · Mar 29, 2011

SpiralFlex said:
Oh, you meant general solutions.

That's what the question stated... He didn't mean anything...