• Determine the interval of convergence of the power series?

    Determine the interval of convergence of the power series ∞ Σ (1/(3^(n)*n)) * (x - 1)^n n=1
    Determine the interval of convergence of the power series ∞ Σ (1/(3^(n)*n)) * (x - 1)^n n=1
    2 answers · Mathematics · 7 years ago
  • Maths problem using 2 different elevations from a distance apart?

    John is 90m due west of Mary on a ‘level’ road. He sees that the angle of elevation of a kite flown by their son is 30 degrees, while Mary sees that it is due north at an angle of elevation of 38 degrees. What is the height of the kite above the level ground?
    John is 90m due west of Mary on a ‘level’ road. He sees that the angle of elevation of a kite flown by their son is 30 degrees, while Mary sees that it is due north at an angle of elevation of 38 degrees. What is the height of the kite above the level ground?
    4 answers · Mathematics · 9 years ago