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Questions  >>  EAMCET  >>  Mathematics
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If a=ˆi+ˆjˆk and b=+λˆi3ˆj+ˆk and the orthogonal projection of b on a is 43(ˆiˆjˆk), then λ is equal to

(a)0(b)2(c)12(d)1

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