A: Vector component of \ov b perpendicular to \ov a is \frac{\ov a\times(\ov b\times\ov a)}{|\ov a|^2} \R:{\ov a\times(\ov b\times\ov a)}=(\ov a.\ov c)\ov b-(\ov a.\ov b)\ov c, |\ov a\timesb\ov |=|\ov a||\ov b|\sin\theta

Correct Answer is : Both A and R are true and R is the correct explanation of A

Both A and R are true and R is the correct explanation of A

Both A and R are true and R is not the correct explanation of A

AP and TS EAMCET Engineering Model Paper 18

Question : 71 of 160

Marks: +1, -0

A: Vector component of b perpendicular to a is

a×(b×a)

|a|2

R:a×(b×a)=(a.c)b−(a.b)c, |a×b|=|a||b|sin‌θ

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