If someone could please help me solve some of these, because I'm getting stuck on all of them: 1. ∫ sin5xsin3x dx 2. ∫ (tanx + cot x) squared 3. ∫ (tan x) to the sixth power 4. ∫ (tan x)cubed times (sec x) cubed thanks for any help!
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Originally Posted by turtle If someone could please help me solve some of these, because I'm getting stuck on all of them: 1. ∫ sin5xsin3x dx 2. ∫ (tanx + cot x) squared 3. ∫ (tan x) to the sixth power 4. ∫ (tan x)cubed times (sec x) cubed thanks for any help! My eyes are starting to get bleary, (it's been a long day), so I will just say the first one will go much easier if you note: -Dan
Originally Posted by turtle 3. ∫ (tan x) to the sixth power Write, But, But, Thus, You can do the first do using . The third is simply . The last is easy. Thus,
Originally Posted by turtle 2. ∫ (tanx + cot x) squared Open paranthesis, Thus, (note that ),
Originally Posted by turtle 4. ∫ (tan x)cubed times (sec x) cubed Call, Thus, The integral, Can be done by parts as above, But, Thus, The problem reduces to finding, Write, Use, Thus, You can now do the full problem.
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