# Integration help no clueWatch

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#1
How would you start this Qs?

Integral of (cot^6)(cosec^4)

*EDIT FIGURED IT OUT
0
1 year ago
#2
(Original post by Econowizard)
How would you start this Qs?

Integral of (cot^6)(cosec^4)
A substitution would work well.

Spoiler:
Show

let u = cot x
0
1 year ago
#3
(Original post by ghostwalker)
A substitution would work well.

Spoiler:
Show

let u = cot x

how can you figure out what substitutions are best to put in? is it just by looking at them?
0
1 year ago
#4
(Original post by bruh2132)
how can you figure out what substitutions are best to put in? is it just by looking at them?
Familiarity and experience, mainly.

In this particular case, look at the various parts of the integrand, ignoring powers if necessary, and consider how they might relate, what identities do you know that they are involved in, what's the derivative of each part,.... Those are the clues.
1
1 year ago
#5
(Original post by ghostwalker)
Familiarity and experience, mainly.

In this particular case, look at the various parts of the integrand, ignoring powers if necessary, and consider how they might relate, what identities do you know that they are involved in, what's the derivative of each part,.... Those are the clues.
thanks, I always find myself struggling with those I guess I'll just do more questions and it should come to me, Thanks again!
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