Cos^-1(1.61cos(theta))

Question

anonymous · Answer

$$\cos ^{-1}(1.61\cos(\theta))$$

anonymous · Answer

That is a better look at it. I am trying to figure this out and I was wondering if the cos inverse can cancel out the cos on the inside

jdoe0001 · Answer

is there a context to it?

anonymous · Answer

Well in all honesty I am trying to figure out a formula for a physics class...I have all of the equations, I just need to do the math part to figure it out. I will write the two equations I have

anonymous · Answer

Equation #1           $$T_c*\cos(\phi) - T_D *\cos(\theta) = 0$$

Equation #2           $$T_D*\sin(\theta) - T_c*\sin(\phi) - mg= 0$$

T_D is known to be 3592
T_c is known to be 2230
and G is the acceleration due to gravity which is 9.81

anonymous · Answer

What I am trying to solve for is m

anonymous · Answer

Or at least m is what would lead me to the answer that I want

jdoe0001 · Answer

$\bf T_D\cdot \sin(\theta) - T_c\cdot \sin(\phi) - mg= 0\implies \cfrac{T_D\cdot \sin(\theta) - T_c\cdot \sin(\phi)}{g}=m\quad ?$

anonymous · Answer

Ok, but I don't know what theta or phi are

anonymous · Answer

I am an idiot

jdoe0001 · Answer

...I guess dunno

anonymous · Answer

Sorry I said that because I just looked and at the smallest part of the page, it says that theta =62.5 and phi = 35

anonymous · Answer

*facepalm*

jdoe0001 · Answer

heheh, there are you mystery angles =)

anonymous · Answer

Thanks for the help even though I was an idiot haha

jdoe0001 · Answer

He who asks is a fool for five minutes, but he who does not ask remains a fool forever. 

 ~~ Chinese proverb ~~

jdoe0001 · Answer

To see what is in front of one's nose needs a constant struggle. 

 ~~ George Orwell, "In Front of Your Nose" ~~

jdoe0001 · Answer

=)

anonymous · Answer

Lol thanks