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the values of a for which the points A,B,C with the position vectors 2i-j+k, i-3j-5k and ai-3j+k respectively are the vertices of a right angled triangle with C=90 are

the values of a for which the points A,B,C with the position vectors 2i-j+k, i-3j-5k and ai-3j+k respectively are the vertices of a right angled triangle with C=90 are

Grade:12

1 Answers

Arun
25758 Points
3 years ago
Dear Ajay
 
Use CA. CB = 0     (as angle C is right angle)
 
you will get 
a = 1, 2
hope it helps
 
Regards
Arun (askIITians forum expert)

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