Vector Algebra Questions

MathematicsVector Algebra152 Questions Found

MathematicsVector Triple ProductJEE Main 2015Moderate

Let $a, b$ and $c$ be three non-zero vectors such that no two of them are collinear and $(a \times b) \times c = \frac{1}{3} ∣ b ∣∣ c ∣ a$ . If $θ$ is the angle between vectors $b$ and $c$ , then a value of $sin θ$ is :

(A)

\frac{2}{3}

(B)

\frac{- 2 3}{3}

(C)

\frac{2 2}{3}

(D)

\frac{- 2}{3}

Answer:C

MathematicsVector Triple ProductJEE Main 2016Easy

(A)

\frac{2 π}{3}

(B)

\frac{5 π}{6}

(C)

\frac{3 π}{4}

(D)

\frac{π}{2}

Answer:B

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