Grade 11 Math help

[needshelp]

Hi!

I have 3 questions:

1. how do you draw the diagram for:
Radar at the control tower T of an airport is tracking two aircraft. Airplane A is on a bearing of N35degreesE at a distance of 10km from the tower. Aircraft B is on a bearing of N20degreesW at a distance of 6km from T. Determine the distance AB.

2. simplify each of the following:

Thanks in advance!

 

[Daniel_Feldman]

For problem 2:

Part c:

1-x^2=(1+x)(1-x)

x^2-2x+1=(x-1)(x-1)

x^2-x-2=(x-2)(x+1)

2x-4=2(x-2)

Also, dividing by a number is the same as multiplying by its reciprocal.

So now you try to simplify it.