a) \(2|\vec{a}|^2+6\vec{a}.\vec{b}-3|\vec{b}|^2\)
b) \(8|\vec{a}|^2+5\vec{a}.\vec{b}-5|\vec{b}|^2\)
c) \(2|\vec{a}|^2+6\vec{a}.\vec{b}-8|\vec{b}|^2\)
d) \(7|\vec{a}|^2+\vec{a}.\vec{b}-6|\vec{b}|^2\)
Find the product \((\vec{a}+\vec{b}).(7\vec{a}-6\vec{b})\).
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
Find the product \((\vec{a}+\vec{b}).(7\vec{a}-6\vec{b})\).
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!