lightning9t
New Member
- Joined
- Aug 6, 2008
- Messages
- 17
- Gender
- Male
- HSC
- 2008
Q.4b)i) 180mm
ii) > 12.4 = 13 times
Q.5
a) y = x + 2cos3x + 5
b)i) -1/2 < x < 1/2
ii) 19/40
c) iii) -298 lux/m
Q.6. b) iv) 1480/3
c) 18/3/4 (pi)
Q.7. b)ii) 20(pi)/3
Q.8. iv) looks like two boobs hanging down
Q.9. b)ii) 975.85
c)ii) (5kb^4)/12 (below the x-axis)
Q.10. a) 5ln5 - 4
b)ii) x = l/squareroot(2)
iii) MP = s(l - x)/x (sub in x = l/squareroot(2)
Please correct me if I'm wrong, just quickly done
ii) > 12.4 = 13 times
Q.5
a) y = x + 2cos3x + 5
b)i) -1/2 < x < 1/2
ii) 19/40
c) iii) -298 lux/m
Q.6. b) iv) 1480/3
c) 18/3/4 (pi)
Q.7. b)ii) 20(pi)/3
Q.8. iv) looks like two boobs hanging down
Q.9. b)ii) 975.85
c)ii) (5kb^4)/12 (below the x-axis)
Q.10. a) 5ln5 - 4
b)ii) x = l/squareroot(2)
iii) MP = s(l - x)/x (sub in x = l/squareroot(2)
Please correct me if I'm wrong, just quickly done