- #1

TS656577

- 62

- 0

## Homework Statement

If d1 = 4i - 10j + 2k and d2 = 9i - 10j + 6k, then what is (d1 + d2) · (d1 × 4d2)?

## Homework Equations

Know how to do the cross product and dot product

## The Attempt at a Solution

For the answer i got 9.6i + 56j -127.68k. How do i express that as a scalar for an online program that only has one box to type in?