SOLUTION: prove that {{{(cos^3X+Sin^3X)/(cosX+sinX)=(1-sinXcosX)}}}
Algebra.Com
Question 1043835: prove that AMP Parsing Error of [(cos^3X+Sin^3X)/(cosX+sinX)=(1-sinXcosX)]: Invalid function '\X+Sin^3\X)/(cosX+sinX)=(1-sinXcosX)': opening bracket expected at /home/ichudov/project_locations/algebra.com/templates/Algebra/Expression.pm line 70.
.
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
recall:
.....rearrange left side
......since , we have
RELATED QUESTIONS
Verify that the following is an identity?
(sin^4x-cos^4x) / (sin^3x+cos^3x) =... (answered by lwsshak3)
how do you prove that sinxCosx=cosx-cos^3x/sinx are egual?
also 2+2Cot^2= 2cotx secx... (answered by Fombitz)
sinx + cosx - sinxcosx = sin^2 x + cos^2... (answered by Nate)
Prove... (answered by Gogonati)
sin3x + cos3x
------------- = 1-sinxcosx
sinx + cosx
prove this... (answered by venugopalramana)
Verify the following trig identities
1) sin^2x/cosx=secx-cosx
2) 1+sinx/1-sinx -... (answered by lwsshak3)
How do you prove... (answered by mananth)
Show that each of the following is an identity
1+tan^2x / csc^2x = tan^2x... (answered by Alan3354)
Prove using reciprocal and pythagorean identities: (cscx-cotx)/(secx-1)= cotx
I have... (answered by jsmallt9)