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If vectors : vec(p)=ahat(i)+hat(j)+hat(k),vec(q)=hat(i)+bhat(j)+hat(k),vec(r)=hat(i)+hat(j)+chat(k)(ane1,b ne1,c ne1) are coplanar, then value of (1)/(1-a)+(1)/(1-b)+(1)/(1-c)= |
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Answer» 0 `f(x)=(e^(x))/(x),f'(x)=((x-1)e^(x))/(x^(2))gt 0 [AA x in (1,2)]` `rarrIgtAr.[ACDE]` ` I gt e xx 1 IMPLIES I gt e ....(1)` `rarr I lt "AREA of trapezium ABCDE"` `ILT (1)/(2)(1)[e+(e^(2))/(2)]` `I lt (e)/(2)+(e^(2))/(4)"".......(2)` `(I gt 3+(e)/(2))` is false from (2)
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