Examlex
Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.
-
Leader
An individual who guides or directs a group, organization, or country.
Flying Machine
A term often used historically to refer to any apparatus capable of flight, including airplanes, helicopters, and other aircraft.
Safety Record
A documented history or log of safety incidents, accidents, and compliance, critical for assessing an entity's performance in maintaining safety standards.
Helicopter
A type of aircraft that can take off and land vertically, as well as hover and move forward, backward, and laterally through the air, thanks to its rotating blades.
Q9: <span class="ql-formula" data-value="\left( 2 x ^ {
Q10: <span class="ql-formula" data-value="- \sqrt { 36 }"><span
Q16: The times (in minutes) to assemble
Q33: <span class="ql-formula" data-value="\left( \frac { 3 }
Q56: <span class="ql-formula" data-value="( x + y )
Q64: The length ℓ of a metal
Q67: <span class="ql-formula" data-value="15 + 19 + 23
Q89: <span class="ql-formula" data-value="\left| \frac { 2 x
Q100: <span class="ql-formula" data-value="\frac { 2 x ^
Q121: The table below shows the weights,