Recent content by lfdahl

  1. lfdahl

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

    Hello,Theia
  2. lfdahl

    MHB Inequality involving positive real numbers

  3. lfdahl

    MHB Is this Trigonometric Expression a Constant Function of x?

  4. lfdahl

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

  5. lfdahl

    MHB Roots of equation and probability

  6. lfdahl

    MHB Inequality of positive real numbers

  7. lfdahl

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

  8. lfdahl

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

  9. lfdahl

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

  10. lfdahl

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

  11. lfdahl

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

  12. lfdahl

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

  13. lfdahl

    MHB Can you prove this inequality challenge?

  14. lfdahl

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

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

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