# C3 integration helpWatch

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#1
Not sure what to do

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5 years ago
#2
Not sure what to do

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when you substitute (0,0), I think you copy the wrong equation...
2x-1 rather than 2x+1
0
5 years ago
#3
You've integrated it right but when substituting the 2 co-ordinates in, you've done '+1' instead of '-1'. I think that's where you went wrong
0
#4
(Original post by bird in water)
when you substitute (0,0), I think you copy the wrong equation...
2x-1 rather than 2x+1
(Original post by pujah0ntas)
You've integrated it right but when substituting the 2 co-ordinates in, you've done '+1' instead of '-1'. I think that's where you went wrong
Thanks for that but I got stuck again meh

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#5
It's OK got it

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5 years ago
#6
Another C3 problem!! Can anybody please help?? I am probably being really dense but how do you solve 3sinx-4cosx=3 in the range where x is between 0 and 2Ï€??? Thank you ever so much!!
0
#7
(Original post by EmilyJones123)
Another C3 problem!! Can anybody please help?? I am probably being really dense but how do you solve 3sinx-4cosx=3 in the range where x is between 0 and 2Ï€??? Thank you ever so much!!
Harmonic formula

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