Tan Question. (1 Viewer)

[frenzal_dude]

Hey, i was just wondering if someone could double check this for me.

y=3tan2x, (0 less than or same as x which is lessthan or same as pi)

how would that look? i drew up a drawing of it in paint for you guyz 2 c.

I think the text book might be wrong, i am using 'Excel HSC maths, topic by topic, exam questions', the question is on page 76 question 3 part c.

 

[Dreamerish*~]

You can always shove it in Winplot to check.

Here, I did it for you.

 

[aaaman]

ok y = 3tan2x, peroid = pi/b, since b = 2 than peroid = pi/2



so pretty much at a tan graph devide everything by 2 like the atsmopte (srry for spelling) would be at pi/4 instead of pi/2....got it

 

[frenzal_dude]

i just edited my first post, can u tell me which one is correct in that picture i drew?

 

[Jago]

sub in 90 degrees to check.

you are correct.

 

[Dreamerish*~]

i just edited my first post, can u tell me which one is correct in that picture i drew?

Looks like your one is right.

 

[aaaman]

he is right, the diagram in the book is wrong. li

 

[word.]

The first graph doesn't exist...

 

[frenzal_dude]

k thanx heaps for your help guyz, i just dont understand how a text book can be wrong, especially one that is famous such as excel, cant the dude who wrote it get in trouble for giving false information?

 

[pLuvia]

If it is first edition then yes there are usually errors, all textbooks have error.

 

[withoutaface]

Step 1. Hop in car.
Step 2. Dress down to boardies.
Step 3. Lay on beach.
Step 4. Cook til done.