Question

if P =2i+3j-k and Q =2i-5j+2k then find
a) P+Q
b) 3P-2Q​

Answer 1

Answer:

Hope it helps you mate :)

Answer 2

$\huge{❥}\:{\mathtt{{\purple{\boxed{\tt{\pink{\red{A}\pink{n}\orange{s}\green{w}\blue{e}\purple{r᭄}}}}}}}}❥$

Given that,

P=2i+3j-k

Q =2i+4j+2k

To find,

P+Q and 3P-2Q

Solution,

For P+Q,

$= 2i + 3j - k + (2i + 4j + 2k) \\ \: = 4i + 7j + k$

For 3p-2Q,

$= 3(2i + 3j - k) - 2(2i + 4j + 2k) \\ = 6i + 9i - 3k - (4i - 8j - 4k )\\ 6i + 9i - 3k - 4i - 8j - 4k \\ \: = 2i + j - 7k$

$\huge\bold{\textbf{\textsf{{\color{blue}{Hence,this is the required solution}}}}}$