• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

...Too easy... (1 Viewer)

justchillin

Member
Joined
Jun 11, 2005
Messages
210
Gender
Male
HSC
2005
wonton, I think my soln is correct... if cant see how it is only h^8...
 

wanton-wonton

Active Member
Joined
Aug 14, 2004
Messages
1,415
Gender
Male
HSC
2005
justchillin said:
wonton, I think my soln is correct... if cant see how it is only h^8...
How can you assume the triangle is equilateral?

I assume that z = x^4, correct?

And so that means when x = h, the base is h^4 + h^4 while the height is h^4.

Therefore, area = 1/2.base.height = 1/2 . 2h^4 . h^4 = h^8.
 

justchillin

Member
Joined
Jun 11, 2005
Messages
210
Gender
Male
HSC
2005
Hahaha... none of our fault... in the question it sais that each cross section is an equilateral triangle... its from HSC 2004...
 

wanton-wonton

Active Member
Joined
Aug 14, 2004
Messages
1,415
Gender
Male
HSC
2005
justchillin said:
Hahaha... none of our fault... in the question it sais that each cross section is an equilateral triangle... its from HSC 2004...
Oh alright, sorry, I didn't have a look at that one yet. I guess we're both right.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top