CBSE - XII Commerce - Mathematics
Past records show that 80% of the operations performed by a certain doctor were successful . If he performs 4 operations per day what is the probability that at least 3 operations will be successful?
Please give the solution to the following question posted on 8th March : The projection of a vector on the coordinate axes are 6,-3, 2 resp. Find its length and direction cosines.
Also you had stated to give the answer to the second part of the second question posted on 8th March : Also find if the plane thus obtained
contains the line x-2/3=y-1/1= z-2/5 Pls tell if you have answered this part of the question.
Also pls refer your answer to my question posted on 3rd March : Find a unit vector in the XY plane which makes an angle of 45degree with vector i+j and 60 degree with the vector 3i-4j . You have stated in your answer that there is no such vector in the XY Plane.
However there is such a vector as per answer given in the book and the vector is 1/14(13i +j). Hence I request you to please check the answer provided by you . Thanks
Dear student, the following are the solutions as we told you we shall provide. Hope this helps.
Answered by Expert 10th March 2017, 5:29 PM
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