exam Maths Puzzle Numerical Ability

PLease help me to solve the following :

Draw and label a figure for the situation described below.

On line L, ray AB and ray CD have no points in common.

thank you!

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exam Other Question

7cos(2*x)+sin(x)=7 [0, 2pi]
4sin(2*x)+cos(2*x)=0 [0, 2pi]
cos(2*x)-sin(x)=0 [0, 2pi]
I need help simplifying
the squae root of 28x^2y + the square root of 63x^2y^3. Thank you very much.