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junior college 1 | H1 Maths
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How to do 6 7 9 10 ? Integration
Date Posted: 6 years ago
Views: 487
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Wait i dont understand . How do you know its sin2x? Is it a formula kind of thing ? Please do step by step cos i really dont understand
Formula list given during exams:
sin 2A ≡ 2 sin Acos A
Your aim is to make it into either sin or cos only so that it becomes simple integration
sin 2A ≡ 2 sin Acos A
Your aim is to make it into either sin or cos only so that it becomes simple integration
But why do you have to minus 1 ? I dont understand the second last and third part
Can i use integration by parts or special integration for this Q
Hi u there ? Is it possible ti use integration by parts or special integration to solve these?
cos2A = 2cos^2(A) - 1 (formula sheet)
You wanna avoid integration by parts as much as possible. It's the most tedious integration. Always try to simplify
You wanna avoid integration by parts as much as possible. It's the most tedious integration. Always try to simplify
When you have double angle, always refer back to formula sheet. I was also very weak in this until I slowly practice and learn to identify all these conversion of formula using formula sheet.
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Simple integration
Date Posted:
6 years ago
Can you help me with Q5 too please. I alr do but i not sure if its right
Sorry tried but too long never do integration by parts. Answer from what I got online is 1/9 (3xsin(3x)+cos(3x)) + C
7 is here
Thank you for helping me really
No problem
Can help me again please please please .
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When facing fractions for non-trigo expressions, see if top is similar to bottom part when bottom is differentiated.
Date Posted:
6 years ago
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Same as 5. sin 2A ≡ 2 sin Acos A
Date Posted:
6 years ago
Thank you so much but how do i solve Q7?
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