Question

what is the angle between vector 2a and vector 4b​

Answer 1

Answer:

Angle between Two Vectors Formula

If the two vectors are assumed as a⃗ and b⃗ then the dot created is articulated as a⃗ .b⃗ . Let’s suppose these two vectors are separated by angle θ. To know what’s the angle measurement we solve with the below formula

Angle Between Two Vectors

we know that the dot product of two product is given as

a⃗ .b⃗ =|a⃗ ||b⃗ |cosθ

Thus, the angle between two vectors formula is given by

θ=cos−1a⃗ .b⃗ |a⃗ ||b⃗ |

where θ is the angle between a⃗ and b⃗