a = 3 i ^ − 5 j ^ and b = 6 i ^ + 3 j ^ are two vectors and c is a vector such that c = a × b then ∣ a ∣ : ∣ b ∣ : ∣ c ∣

We have a × b = 39 k = c Also ∣ a ∣ = 34 , ∣ b ∣ = 45 , ∣ c ∣ = 39 ∴ ∣ a ∣ : ∣ b ∣ : ∣ c ∣ = 34 : 45 : 39

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Mathematics - Vector Question with Solution | TestHub

MathematicsVectorDot Product & Its Application ( Projection etc.)Easy2 minPYQ_2002

MathematicsEasysingle choice

$a = 3 \hat{i} - 5 \hat{j}$ and $b = 6 \hat{i} + 3 \hat{j}$ are two vectors and $c$ is a vector such that $c = a \times b$ then $∣ a ∣ : ∣ b ∣ : ∣ c ∣$

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We have $a \times b = 39 k = c$ Also $∣ a ∣ = 34, ∣ b ∣ = 45, ∣ c ∣ = 39 ∴ ∣ a ∣ : ∣ b ∣ : ∣ c ∣ = 34 : 45 : 39$

Stream:JEESubject:MathematicsTopic:VectorSubtopic:Dot Product & Its Application ( Projection etc.)

⏱ 2mℹ️ Source: PYQ_2002

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