How to solve a problem when it is given to find angle between two straight lines ?

Question

Answer

Find slope of both the lines.Let the slopes of the 2 lines be m1 and m2.Now,use this formula:
TanA=|m2-m1|/|1+(m1 .m2)|
Here A= angle between the 2 lines

Answer

Find the direction of the lines indicated and then if they are parallel then the answer is 0 degree and when it is Antiparallel then the angle is 180 degrees

Answer

If there are given two curve find the slope of each curve i.e. dy/dx ( also known as tan r = dy/dx = m ) and then apply the simple formula two find angle between these two curve

tan A = m1+ m2 /1- m1*m2

Where 'A' is angle between two curves .

In your questions try to write the equation of both straight lines and then do the same step as mentioned above

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