The Student Room Group
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

Maths Edexcel C4

I think we should start a thread of tricky questions is C4. For example, finding the integral of 2cos4xcos4x...
Original post by Ajh724
integral of 2cos4xcos4x...


Do you know how to do this? If not do you want a hint?
Original post by Ajh724
I think we should start a thread of tricky questions is C4. For example, finding the integral of 2cos4xcos4x...


Did you mean for the two arguments to be different? As this is a fairly standard integral.
Reply 3
Avatar for Ajh724
Ajh724
OP
6
Ans:x + 1/8sin8x

I thought it was quite tricky...
Reply 4
Avatar for Ajh724
Ajh724
OP
6
Can someone explain why (n+1)!+n!=n!(n+1+1)

I dont understand
Original post by Ajh724
Can someone explain why (n+1)!+n!=n!(n+1+1)

I dont understand


What does (n+1)! look like expressed in terms of just (n+1) and n?
Reply 6
Avatar for Ajh724
Ajh724
OP
6
Got it thanks.

Ans: (n+1)n!+n! therefore n!(n+1+1) thanks

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you