For qn 20a, can u show me how [1/(sqrrt2 +1)] is equal to (sqrt 2 -1) by doing workings and nt using decimals. And pls teach me qn21(i) the hence part. Thks alot!!!
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Originally Posted by maybeline9216 For qn 20a, can u show me how [1/(sqrrt2 +1)] is equal to (sqrt 2 -1) by doing workings and nt using decimals. And pls teach me qn21(i) the hence part. Thks alot!!! ok we want to prove that let lats see if true or not so P1 is true suppose that Pk is true try P(k+1) the left side but the second term equal so is true we prove it by induction
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