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#1 Re: Help Me ! » trignometrical identities and simple equations Q2) » 2009-03-16 01:19:20
plz explain the second technique 
i dont just want the answer, i wanna know how to GET the answer:(
#2 Re: Help Me ! » trignometrical identities and simple equations Q1) » 2009-03-16 01:08:51
thnx a lot 
#3 Help Me ! » trignometrical identities and simple equations Q2) » 2009-03-12 22:34:45
- serena
- Replies: 4
2) solve the following eqns for x, giving your answers to 3 significant figures where appropriate, in the intervals indicated.
a) tan x° = 2.90, 80 ≤ x ≤ 440
&
b) cos x° = -0.809, -180 ≤ x ≤ 180
i will be very gr8full again,
#4 Help Me ! » trignometrical identities and simple equations Q1) » 2009-03-12 22:27:22
- serena
- Replies: 2
solve the following equations for θ, in the interval 0<θ≤ 360°
a) (sin θ - 1)(5cos θ +3) = 0
&
b) tan θ= tan θ(2+3 sin θ)
#5 Re: Help Me ! » integration » 2009-03-12 20:35:42
no tis okay now srry kind of got mixed up 
#6 Re: Help Me ! » integration » 2009-03-12 20:28:49
actually i didn
#7 Re: Help Me ! » integration » 2009-03-12 20:24:22
no srry i got it 
#8 Re: Help Me ! » integration » 2009-03-12 20:22:21
can you or anyone tell me wat do we replace x by ?:D
#9 Re: Help Me ! » integration » 2009-03-12 19:54:49
thank you so much
#10 Re: Help Me ! » Graphs of trignometric functions » 2009-03-12 03:44:49
thnx
#11 Help Me ! » integration » 2009-03-12 03:42:41
- serena
- Replies: 6
1) Find the area of the finite region between the curve with equation y=x(x-4)² and the x-axis.
plz, i will be very thankful !!
#12 Help Me ! » Graphs of trignometric functions » 2009-03-12 03:20:35
- serena
- Replies: 2
1) Given that ө is an acute angle measured in degrees, express in terms of sin ө:
a) sin(-ө)
b) sin(-360+ө)
plz help me 
!!
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