If `veca = hati - 2hatj+hatk, vecb = 2hati + hatj -hatk` and `vecC = 3hati + 5hatj + 2hatk` then find the value of `vecaxx (vecb xx vecc).`

If veca = hati+2hatj-hatk , vecb = hati+hatj+2hatk , vecc = 2hati-hatj then

If veca=hati+2hatj-hatk, vecb=2hati+hatj+hatk and vecc=5hati-4hatj+3hatk then find the value of (veca+vecb).vecc .

If veca = 2hati-2hatj+hatk , vecb = 2hati-hatj+4hatk , and vecc = hati+2hatj-2hatk then find the projection of vecb+vecc on veca .

If veca = 2hati+2hatj-hatk , vecb = hati+2hatj-2hatk , and vecc = 2hati-hatj+4hatk then find the projection of vecb+vecc on veca .

If veca = 2 hati - 3hatj, vecb = hati + hatj -hatk, vecc = 3hati - hatk, find [a vecb vecc]

if veca=2hati-5hatj+8hatk, vecb=hati-3hatj-7hatk and vecc=-3hati+2hatj-hatk then find |veca+vecb+vecc|

If vecA= hati+2hatj+3hatk, vecB=-hati+hatj + 4hatk and vecC= 3hati-3hatj-12hatk , then find the angle between the vector (vecA+vecB+vecC) and (vecAxx vecB) in degrees.

If vecA= hati+2hatj+3hatk, vecB=-hati+hatj + 4hatk and vecC= 3hati-3hatj-12hatk , then find the angle between the vector (vecA+vecB+vecC) and (vecAxx vecB) in degrees.

Let veca=hati-hatj+hatk, vecb=2hati+hatj+hatk and vecc=hati+hatj-2hatk , then the value of [(veca, vecb, vecc)] is equal to