A) \[\frac{1}{4}\,|a\times b+b\times d+d\times a|\]
B) \[\frac{1}{4}\,\left| b\times c+c\times d+a\times d+b\times a \right|\]
C) \[\frac{1}{4}\,\left| a\times b+b\times c+c\times d+d\times a \right|\]
D) \[\frac{\text{1}}{\text{4}}\text{ }\!\!|\!\!\text{ b }\!\!\times\!\!\text{ c+c }\!\!\times\!\!\text{ d+d }\!\!\times\!\!\text{ b }\!\!|\!\!\text{ }\].
Correct Answer: C
Solution :
You need to login to perform this action.
You will be redirected in
3 sec