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Let = + , =b1 +b2 +  and  = 5 + +  be three sectors such that the projection castor of  on  is .  If +  is perpendicular to then  is equal to:


Question ID - 56748 | Toppr Answer

Let = + , =b1 +b2 +  and  = 5 + +  be three sectors such that the projection castor of  on  is .  If +  is perpendicular to then  is equal to:

1 Answer - 5876 Votes

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Answer Key : (6) -

Projection of to  on   = =

 b1+b2=2        … (1)

And ( +  ( . =0

 5b1+b2=−10 … (2)

From(1)and (2) b1= −3 and b2=5

Then =



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