Given that cos 60°= sin 30°= 1/2 and cos 30°= sin 60°= √3/2, evaluate tan 60°-1/ 1- tan 30°
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Given:
The line passing through (-2,5) and (2,p) has a gradient of .
To find:
The value of p.
Solution:
If a line passes through two points, then the slope of the line is:
The line passing through (-2,5) and (2,p). So, the slope of the line is:
It is given that the gradient or slope of the line is .
On cross multiplication, we get
Divide both sides by 2.
Therefore, the value of p is 3.