if tan^2x=1-e^2, prove that secx+tan^3x

tan(3x) + 1 = sec(3x)Thanks, pretend 3x equals x so tanx + 1 = secx we know the law that 1 + tanx = secx so tanx + 1 becomes
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2. asked by Jen
3. 3,887 views
Prove the following identities.1. 1+cosx/1-cosx = secx + 1/secx -1 2. (tanx + cotx)^2=sec^2x csc^2x 3. cos(x+y) cos(x-y)= cos^2x
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2. asked by Liv
3. 2,914 views
Prove the following identity. Show all steps clearly. the ----- indicates that it is a fraction.L.S cos2x sin(pi+x)
1. 2 answers
2. asked by Riley
3. 662 views
find dy/dxy=ln (secx + tanx) Let u= secx + tan x dy/dx= 1/u * du/dx now, put the derivative of d secx/dx + dtanx/dx in. You may
1. 1 answer
2. asked by amy
3. 1,556 views
Evaluate the integral of(secx)^2 * (tanx)^3 *dx I started out with letting u=secx and du=secx*tanx*dx , but then I am kind of
1. 1 answer
2. asked by Dave
3. 750 views
Complete the following identity secx-1/secx=? I have four multiple choice options and can't seem to work my way to either one.
1. 3 answers
2. asked by Anne
3. 759 views
if tan^2x=1-e^2, prove that secx+tan^3x cosecx = (2-e^2)^3/2
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2. asked by krishan
3. 374 views
prove that the value of cosx + secx can never be 3/2.
1. 1 answer
2. asked by maths
3. 926 views
prove that secx - tanx = 1 -tan x/2 /1 + tan x/2
1. 1 answer
2. asked by kabir
3. 375 views
Prove that 2cosx/cos2x+1=secx
1. 1 answer
2. 45 views