If a^{-} makes an acute angle with b^{\to} , r^{\to}.a^{\to} = 0 and r^{\to}\timesb^{\to} = c^{\to}\timesb^{\to} , then r^{\to} =

Correct Answer is : →c - (→c.→a→b.→a)→b

c^{\to} - ({c^{\to}.a^{\to}}/{b^{\to}.a^{\to}})b^{\to}

c^{\to} + ({c^{\to}.a^{\to}}/{b^{\to}.a^{\to}})b^{\to}

AP EAMCET Engineering 21 Apr 2019 Shift 1 Paper

Section: Mathematics

Question : 34 of 160

Marks: +1, -0

−

makes an acute angle with

→

= 0 and

→

, then

→

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