« previous next »
Pages: [1]   Go Down

Author Topic: math p1 o/n 05 DOUBT  (Read 1061 times)

Offline *-*Sizzy*-*

  • Newbie
  • *
  • Posts: 3
  • Reputation: 4
  • Gender: Female
  • Love life...d way u luv cocolates!!!:P:P
math p1 o/n 05 DOUBT
« on: April 20, 2010, 10:22:50 pm »
can any one solve 9 iii) i did the rest of the question just part iii) is a lil confusin....:S
Thanks in advance!!! ;)
Logged
Leave the crowd, stand apart, ignore your head and follow your heart.....!

nid404

  • Guest
Re: math p1 o/n 05 DOUBT
« Reply #1 on: April 21, 2010, 06:58:24 am »
Basically you find the the two tangents

for 2x+y=10
m=-2

for 12/x
dy/dx= -12/x2

m= -3

also because tan theta= m
for eq 1
theta= tan-1 (-2)
       = -63.4(negative sign is cuz of the direction) =63.4
for eq 2
theta= tan-1 (-3)
       =-71.6=71.6
angle between them would be the difference...
Draw graphically if u don't understand
    71.6-63.4=8.2 degrees
Logged

Offline *-*Sizzy*-*

  • Newbie
  • *
  • Posts: 3
  • Reputation: 4
  • Gender: Female
  • Love life...d way u luv cocolates!!!:P:P
Re: math p1 o/n 05 DOUBT
« Reply #2 on: April 22, 2010, 02:59:55 pm »
thanx!!!i got it nw!!!Thanks loadz!!!  ;D
Logged
Leave the crowd, stand apart, ignore your head and follow your heart.....!

nid404

  • Guest
Re: math p1 o/n 05 DOUBT
« Reply #3 on: April 22, 2010, 04:27:47 pm »
Quote from: *-*Sizzy*-* on April 22, 2010, 02:59:55 pm
thanx!!!i got it nw!!!Thanks loadz!!!  ;D

anytime
Logged

Amr Fouad

  • Guest
Re: math p1 o/n 05 DOUBT
« Reply #4 on: April 22, 2010, 04:48:55 pm »
Awesome Nid..As always

+rep.
Logged

nid404

  • Guest
Re: math p1 o/n 05 DOUBT
« Reply #5 on: April 22, 2010, 04:50:38 pm »
Quote from: ~ A.F ~ on April 22, 2010, 04:48:55 pm
Awesome Nid..As always

+rep.

Thank you

Thanks for the rep tho
Logged
Pages: [1]   Go Up
« previous next »