The value of a-b-2-a-b-22a2b2 where -a-a- -b-b is

The correct option is B 12 =|a|^2|b|^2sin^2θ +|a|^2|b|^2cos^2θ2a^2b^2 =a^2b^22a^2b^2 =12 ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Circular Measurement of Angle

The value of ...

Question

The value of $\frac{(\to a \times \to b)^{2} + (\to a . \to b)^{2}}{2 a^{2} b^{2}}$ where $| \to a | = a, | \to b | = b$ is

1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{1}{2}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

2

No worries! We‘ve got your back. Try BYJU‘S free classes today!

\frac{1}{4}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

Suggest Corrections

Similar questions

\to a

\to b

θ = \frac{2 π}{3}

| \to a | = 1, | \to b | = 2

{(\to a + 3 \to b) \times (3 \to a - \to b)}^{2} =

\to a

\to b

θ = \frac{2 π}{3} .

| \to a | = 1, ∣ ∣ \to b ∣ ∣ = 2

{(\to a + 3 \to b) \times (3 \to a - \to b)}^{2} =

| \to a | = 4 | \to b | = 2

\to a

\to b

\frac{π}{6}

(\to a \times \to b)^{2}

The scalars l and m such that $l \to a + m \to b = \to c$ where $\to a, \to b$ and $\to c$ are given vectors, are equal to

\to a = \frac{1}{\sqrt{10}} (3^i +^k)

\to b = \frac{1}{7} (2^i + 3^j - 6^k)

(2 \to a - \to b) \cdot [(\to a \times \to b) \times (\to a + 2 \to b)]

Join BYJU'S Learning Program