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What is an irrational number
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A number that cannot be written as a fraction for example Pi or root 2
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There was a solution you used with tan theta which got you 4 marks out of 5. You got 4 solutions but only two of them are correct because the other two didn’t work in the original equation. To have to the final mark, check solution on calculator and reject the solutions that don’t go with it
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A = 35. Find the limitation of the value of T
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Show that
Use substitution
Make u = 1 + costheta
Don’t make u = cos theta
The rest should be straight forward
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n e N on the question means natural numbers so you cannot have fractions or decimals
Your obvs allowed like 5/1 as that is just 5 but you can't have 1/2
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* remet YOU CANNOT INTEGRATE lnx
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What are the 4 quadrants
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Use algebra to prove that the square of any natural number is either a multiple of 3 or one more than a multiple of 3
Let n = 3k, 3k +1, 3k + 2
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For exhaustion sub in all values
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Prove Root (2) is irrational by contradiction
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Prove Sn = n/2 [2a + (n-1)d]
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Why is this wrong
Integrating cos^3 t cannot happen and you MUTS use substitution
Unless an algebraic term has an exact trug ineitity which makes it easier to integrate to, use substitution
