Help plz urgent maths

Help I got this wrong but it my formula booklet it says that tanx integrates to ln|secx| + c
But the markscheme says other wise

question f btw

(edited 11 months ago)

Reply 1

old_engineer

Original post by Alevelhelp.1

Help I got this wrong but it my formula booklet it says that tanx integrates to ln|secx| + c
But the markscheme says other wise question f btw

Consider that sec(x) = (cos(x))^(-1) and apply the laws of logs.

Reply 2

Alevelhelp.1

Original post by old_engineer

Consider that sec(x) = (cos(x))^(-1) and apply the laws of logs.

Ahh I see thank you btw <3
Also would I not get the mark in the exam or is my answer fine too

Reply 3

old_engineer

Original post by Alevelhelp.1

Ahh I see thank you btw <3
Also would I not get the mark in the exam or is my answer fine too

You should get the mark as your solution is mathematically correct.

Reply 4

Alevelhelp.1

@PrathHere

(edited 10 months ago)

Reply 5

Muttley79

What have you done so far?

Reply 6

PrathHere

Original post by Alevelhelp.1

Attachment not found

@PrathHere

Thank you so much!

Reply 7

Alevelhelp.1

Original post by old_engineer

You should get the mark as your solution is mathematically correct.

Original post by Muttley79

What have you done so far?

I was just sending it to prathhere btw
The worksheet since they wanted a copy :smile:

I skipped lots of these qs since I keep getting stuck and my exam is soon so I need to revise biology too getting caught up on time :frown:

(edited 11 months ago)

Reply 8

Alevelhelp.1

Original post by Muttley79

Isn't this copyright? You should not post questions from published resources without acknowledgement.

It’s just from my class booklet my teacher made 😂 and we all ask qs on tsr… those qs are also from different sources, right?
We don’t give acknowledgment to them.
Is this necessary…. I’m sure prath has saved it so I’ll delete it… thanks for the advice muttley!