Solve the following sums:
1/(1×3) + 1/(3×5) + 1/(5×7) + 1/(7×9) + 1/(9×11) =
1/(4×7) + 1/(7×10) + 1/(10×13) + 1/(13×16) =
1/(2×7) + 1/(7×12) + 1/(12×17) + … =
What geometric figure could be constructed from the difference in the sums of the internal angles of an octagon and a pentagon?
Arrange the number 1 to 9 in the boxes below so that each line of 3 boxes sums to 14(3 numbers have already been placed)
Can you solve the following visual puzzle?
Solve the following equation:
The variable x is a real number, and the exponentiation operator is the real exponentiation operator (no complex values).
