@max-g-3
Max G.
commented
For some fun, let's begin with the "obvious" linear equations: #(1) x = 4 (2) y = -3#
This system consists of one horizontal line and one vertical line. If that is sufficient, stop. If not, add the equations to obtain: #(3) x + y = 1# Subtract the original equations to obtain: #(4) x - y = 7#. In the new system consisting of equations (3) and (4), we also see that (4, -3) is a solution to the system.
on
How do you write a system of equations with the solution (4,-3)?
@max-g-3
Max G.
commented
On a test, it would be unlikely that a teacher would allow students to go online to any website. Otherwise, it would be simplest to google arccsc(1.677) and to convert from radians to degrees. Simply multiply the radian measure by #180/pi#. In preparing for a test, one needs to know how to use the functions that are found on a typical graphing calculator.
on
cosec(2x-15°)=1.677?