Posted by ASH on Wednesday, May 2, 2012 at 11:46am.
Verify the identity:
(tanx+1)/(secx+cscx) = sinx

calculus  Steve, Wednesday, May 2, 2012 at 12:06pm
multiply through by sec+csc to get
tan+1 = sin(sec+csc)
= sinsec + sincsc
= tan + 1

calculus  Reiny, Wednesday, May 2, 2012 at 12:07pm
LS= (sinx/cosx + 1)/(1/cosx + 1/sinx)
= [(sinx + cosx)/cosx] / [ (sinx + cosx)/(sinxcosx)]
= (sinx+ cosx)/cosx * (sinxcosx)/(sinx+cosx)
= sinxcosx/cosx
= sinx
= RS
Answer This Question
Related Questions
 drwls  My previous question: Verify that (secx/sinx)*(cotx/cscx)=cscx is an ...
 calculus  Verify the Identity: (Tanx + 1)/(secx + cscx) = sinx
 Pre Calculus  (secx)/(tanx)+(cscx)/(cotx)=secx+cscx Please help me verify this ...
 PreCalculus  Find a numerical value of one trigonometric function of x if tanx...
 Precalculus  Complete the following identity secx1/secx=? I have four multiple...
 Trig  Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)
 Math  Im really struggling with these proving identities problems can somebody ...
 Precalculus/Trig  I can't seem to prove these trig identities and would really ...
 Trig  verify the following identity: tanx+cotx/cscx=secx
 Trig Help  Prove the following: [1+sinx]/[1+cscx]=tanx/secx =[1+sinx]/[1+1/sinx...
More Related Questions