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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
0 answers
asked by
Jen
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
1 answer
asked by
Liv
2,915 views
Prove the following identity. Show all steps clearly. the ----- indicates that it is a fraction.
L.S cos2x sin(pi+x)
2 answers
asked by
Riley
662 views
find dy/dx
y=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 answer
asked by
amy
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 answer
asked by
Dave
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.
3 answers
asked by
Anne
759 views
if tan^2x=1-e^2, prove that secx+tan^3x cosecx = (2-e^2)^3/2
0 answers
asked by
krishan
374 views
prove that the value of cosx + secx can never be 3/2.
1 answer
asked by
maths
926 views
prove that secx - tanx = 1 -tan x/2 /1 + tan x/2
1 answer
asked by
kabir
375 views
Prove that 2cosx/cos2x+1=secx
1 answer
45 views