If a line Joining Two Points A (2, 0) And B (3, 1) Is Rotated About A in Anticlockwise Direction Through And Angle 15o, Then Equation Of The Line Is The New Position Is

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Question

If a line joining two points A (2, 0) and B (3, 1) is rotated about A in anticlockwise direction through and angle 15o, then equation of the line is the new position is

Solution

Correct option is

     

If AC is the new position of the line AB then CAX = 45o + 15o = 60oand thus its equation is y = tan 60o (x – 2)    

 

                                                                                                         

 

 

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