Discussions for the Core part of the syllabus. Algebra, Functions and equations, Circular functions and trigonometry, Vectors, Statistics and probability, Calculus. IB Maths HL Revision Notes
by halukbach » Wed Dec 24, 2014 7:57 pm
I have some induction questions which I don't know how to solve. Can you solve ? Thank you :)
1Prove that 7^8n+3 + 2 , is divisible by 5
2 Consider z=r(cos@ +isin@)
Prove that z^n= r^n (cos n@+isin n@)
3 Prove that 1+2(1/2) + 3(1/2)^2 + 4(1/2)^3+.... + n(1/2)^n1 = 4 (n+2 / 2^n1)

halukbach

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