Somebody!! please help, will medal

Solve for t
h= 7cos(pi/3t)

Question

Somebody!! please help, will medal

Solve for t
h= 7cos(pi/3t)

anonymous · Answer

@Hero  @jim_thompson5910  @satellite73

anonymous · Answer

$$t=\pi/(3*\cos^{-1}( (h/7)))$$

anonymous · Answer

Divide both sides by 7
h/7=cos(pi/3t)
cos^-1(h/7)=pi/3t, take the inverse cosine of both sides.
1/(cos^-1(h/7)=3t/pi, find the reciprocal of both sides.
pi/(3*cos^-1(h/7)=t, multiple by pi and divide by 3.

tkhunny · Answer

You will have to clarify the notation.

pi/3t means what?  Choices might be: $\dfrac{\pi}{3}t\;or\;\dfrac{\pi}{3t}$

You MUST write clearly and unambiguously.

anonymous · Answer

Well, that is of fault in the original question as well.

anonymous · Answer

sorry, its pi/3 t. they are seperate

tkhunny · Answer

Use parentheses to clarify.  Spaces only sometimes help.  MAKE SURE it says what you want.  Also, keep in mind that not everyone knows how to be clear.  Don't just copy what someone else wrote.  Textbooks, computers, and humans all have slightly different rules in order to be clear.