Recent content by lfdahl

  1. lfdahl

    How Can the Given Definite Integral Identity Be Proven for Any Natural Number n?

    Hello,Theia
  2. lfdahl

    Inequality involving positive real numbers

  3. lfdahl

    Prove sin²(x+a)+sin²(x+b)−2cos(a−b)sin(x+a)sin(x+b) is constant

  4. lfdahl

    Real Number Pairs $(p,\,q)$ Satisfying Inequality

  5. lfdahl

    Roots of equation and probability

  6. lfdahl

    Inequality of positive real numbers

  7. lfdahl

    Summation Challenge: Evaluate $\sum_{k=1}^{2014}\frac{1}{1-x_k}$

  8. lfdahl

    Prove $\sqrt{a}+\sqrt{b}+\sqrt{c}+\sqrt{d}\le 10$ w/ $a,b,c,d>0$

  9. lfdahl

    Prove $\sqrt{a}+\sqrt{b}+\sqrt{c}+\sqrt{d}\le 10$ w/ $a,b,c,d>0$

  10. lfdahl

    Proof of Inequality: $|a+b| \leq |a| + |b|$

  11. lfdahl

    Prove Inequality: $\sqrt{ab}+\sqrt{cd}\le \sqrt{(a+d)(b+c)}$

  12. lfdahl

    Calculating $$\sum_{0 \le k \le n}(-1)^k k^n \binom{n}{k}$$

  13. lfdahl

    Prove inequality with nth roots for n>1

  14. lfdahl

    Solve Equation: $\sqrt{1+\sqrt{1-x^2}}$

    Thankyou, anemone - of course you're right!👍
  15. lfdahl

    Solve Equation: $\sqrt{1+\sqrt{1-x^2}}$

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