Answers

2015-07-25T21:53:04+05:30
A denotes the angle between those 2 lines.
tanA= mod (m2-m1)/(1+m1m2)
secA^2-1=tanA^2
here, you will find the value of secA. the reciprocal of secA is cosA.
next, tanA = sinA/cosA WHERE YOU WILL FIND VALUE OF sinA.


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