Find -x- if for a unit vector a- x-a- x-a-12Answer required

(x⃗ a⃗)· (x⃗+a⃗)=12 ⇒ #160;x⃗· #160;x⃗+x⃗· #160;a⃗ a⃗· #160;x⃗ a⃗· #160;a⃗=12 ⇒ |x⃗|^2 |a⃗|^2=12 ⇒ |x⃗|^2 1=12, [ ∵ |a⃗|=1 a ...

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Acceleration in 2D

Find |x⃗|, ...

Question

Find $| \to x |$ , if for a unit vector $\to a, (\to x - \to a) \cdot (\to x + \to a) = 12$
Answer required

Open in App

Solution

Suggest Corrections

Similar questions

(\to x - \to a)

(\to x + \to a) = 3

(x)

\to x, \to y, \to z

\to x + \to y + \to z = \to a

(\to x \times \to y) \times \to z = \to b

\to a \cdot \to x = \frac{3}{2}, \to a \cdot \to y = \frac{7}{4}

| \to a | = 2,

\to x = \to x \times \to a + \to b

\to a

\to b

\to x

\to x

\to b

\to a

\to x

β \to b - \frac{1}{{∣ ∣ \to b ∣ ∣}^{2}}

\to a

\to b

β

\to x \times \to b = \to c \times \to b

\to x ⊥ \to a

\to x

Join BYJU'S Learning Program