I will answer this strictly on kayfabe manner. Of course, he can. Nothing can stop The Undertaker at Wrestlemania.
You have seen The Undertaker had survived against Big Show & A Train at Wrestlemania 19. You might say he won due to Nathan Jones's help, but anyway The Undertaker would have won without help. You can also count the match at Wrestlemania 28 as a Handicap match.
Like you said, Shawn Michaels delivered SCM and Triple H delivered a Pedigree in one moment, yet The Undertaker still got up. I have no doubt in my mind that The Undertaker would still win against Triple H and Shawn Michaels in a Handicap match. I mean you can see back in 2006 even Big Show could overcome both DX members in Handicap match.
I just don't know how you can doubt The Undertaker to overcome these two at Wrestlemania. The Undertaker is d@mn invincible at Wrestlemania. I think the only way you could win against The Undertaker isn't punishing him like Triple H does at Wrestlemania 27 and 28, that won't work, instead you should stun and surprise him for 3 count, by using a modified roll up that The Undertaker had never seen before.
That's why like my story of The Undertaker's Streak ending where I use Bret Hart (the master of roll up), to stun The Undertaker with a modified roll up to finally break The Streak. I'm sure Triple H and Shawn Michaels would use the same strategy like they did when they failed to end The Streak. I'm sure they will keep punishing The Undertaker together, and The Undertaker will just keep coming back and eventually finishes them off.
The Undertaker could also find an easier way to win, maybe have them eventually fight each other, by ducking a blow and make one of them accidentally hit each other. BQ : I believe the referee's bump during the match really ruined one on one match. That's all when everything went downhill.
Edge looked like a coward who can't win on his own and needed to cheat in every matches. Edge used camera after the bump. And another bad thing is when The Undertaker had Edge pin, but the referee ran just too d@mn long.
I think he would still win. Undertaker's streak is very prestigious and having it end in a 2 vs. 1 match just wouldn't be right. And he would still be able to say he was undefeated in singles competition at Wrestlemania.
But yea if he kicked out of 2 finishers, I know he would still win. BQ: I agree with you.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.