verify for sqrt(1-cosx)= sin/sqrt(1+cosx). I

verify for sqrt(1-cosx)= sin/sqrt(1+cosx).I multiplied the right side by sqrt(1-cosx) and got sqrt(1-cosx)= sin*sqrt(1-cosx),
1. 3 answers
2. asked by unknown
3. 1,138 views
Find the exact value of sinx/2 if cosx = 2/3 and 270 < x < 360.A)1/3 B)-1/3 C)sqrt 6/6 D)-sqrt 6/6 C, since I KNOW cosx is
1. 4 answers
2. asked by Jon
3. 979 views
For f(x) = 2sinx + (sinx)^3 + tanx find f'(pi/3). Ok, so what I tried was...f'(x) = 2cosx + cosx(3(sinx)^2) + (sinx/cosx) pi/3 =
1. 1 answer
2. asked by Mel
3. 673 views
The equation 2sinx+sqrt(3)cotx=sinx is partially solved below.2sinx+sqrt(3)cotx=sinx sinx(2sinx+sqrt(3)cotx)=sinx(sinx)
1. 7 answers
2. asked by girly girl
3. 5,635 views
Find 2 cos(x/2) sin(x/2) when x = -π/6.I know that cos(x/2) = +- sqrt(1-cosx)/2 and sin(x/2) = +- sqrt(1+cosx)/2, but how to
1. 5 answers
2. asked by Denis
3. 580 views
(Sin^3x-cos^3x)/(sinx-cosx) – cosx/sqrt(1+cot^2x)-2tanxcotx=-1 where x∈(0,2pi)general value of x.
1. 1 answer
2. asked by anil jha
3. 2,026 views
Verify the identity:sin^(1/2)x*cosx - sin^(5/2)*cosx = cos^3x sq root sin x I honestly have no clue how to approach the
1. 1 answer
2. asked by Zee
3. 731 views
Simplify #3:[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
1. 1 answer
2. asked by Anonymous
3. 1,092 views
Verify the identity .(cscX-cotX)^2=1-cosX/1+cosX _______ sorry i cant help you (cscX-cotX)=1/sinX - cosX/sinX = (1-cosX)/sinX If
1. 0 answers
2. asked by Rose
3. 735 views
For the following question, we need to find the length of the polar curve:r= 2/(1-cosx) from pi/2 </= x </= pi dr/dx=
1. 1 answer
2. asked by Jenna
3. 722 views