If the vectors bara = (lambda log(2) x) ...

If the vectors `bara = (lambda log_(2) x) bari - 6barj + 3bark and barb = (log_(2) x)bari - 2barj + (2lambda log_(2) x) bark` contain an obtuse angle for all `xgt0 , " then find the range of " lambda`.

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AAKASH SERIES-DOT PRODUCT OF TWO VECTORS-PRACTICE EXERCISE

If the vectors bara = (lambda log(2) x) bari - 6barj + 3bark and barb ...
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If barmu =bara-barb, barv=bara+barb and absbara=absbarb, " then " barm...
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If bara,barb,barc " are unit vectors such that " bara+barb+barc=bar0, ...
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The angle made by the vector 2bari+3barj+6bark " with X-axis is " cos^...
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If bara,barb are two vectors of length 2, 1 respectively and abs(bara-...
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If absbara = 3, absbarb =4 and (bara,barb)=(2pi)/3 , " then the value ...
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Let bare(1) and bare(2) be unit vectors which include an angel theta....
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If bara+barb+barc =bar0 , " then " bara.bara+barb.barb+2(bara.barb)-ba...
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If absbara =5, absbarb =4, absbarc =3 and bara+barb+barc = bar0 ," the...
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If bara,barb,barc are three vectors of equal magnitude and angle betw...
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absbara=absbarb=absbarc=abs(bara+barb+barc)=1 and bara bot barb , (bar...
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If bara,barb,barc are three vector such that each is inclined at an a...
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The scalar product of the vector bari+barj+bark " with the unit vector...
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The angle between the vectors bara and barb " is " 60^(@). " The the a...
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The vectors barx and bary " satisfy " 2barx +bary =barp and barx+2bary...
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Let bara,barb,barc " be unit vectors and " barx=bara+barb+barc . " I...
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If abs(bara+barb)lt abs (bara-barb) " then the angle between " bara an...
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If a,b,c are p^(th),q^(th),r^(th) " terms of an H.P and " baru=(q-r...
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If bara,barb,barc " are three mutually perpendicular vectors such that...
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If the angle between the vectros (x,3,-7) and (x,-x,4) is acute, then ...
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The value of c so that all real 'x' the vectors cxbari - 6barj+3bark, ...
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