Two nonzero vectors a and b are called perpendicular or orthogonal if the angle between them is Blank 1. Fill in the blank, read surrounding text.
and a⋅ b= Blank 2. Fill in the blank, read surrounding text.
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Answers
1)
2)
a‾.b‾=abcosθ=abcos900=ab×0a‾.b‾=0\qquad\qquad \begin{aligned} \small \underline{a}.\underline{b}&=\small ab\cos\theta\\ &=\small ab\cos 90^0\\ &=\small ab\times0\\ \small \underline{a}.\underline{b}&=\small 0 \end{aligned}a.ba.b=abcosθ=abcos900=ab×0=0
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