Question

2. Find the product and verify for a = 1, b = -1
and c = 2
Please do c)

C)10abc x (b + c)​

Answer 1

Answer:

answer of 2

Answer

P×P−P×Q+Q×P−Q×Q=0−P×Q−P×Q−0=−2P×Q

Alternatively,

The options given are scalars whereas the resultant of (P+Q)×(P−Q) is a vector.

Both cannot be equal.

Step-by-step explanation:

answer of c

a+b+c=0

dividing ab & c respect to a2b3c5

=2a+2a+3b+3b+3b+5c+5c+5c+5c+5c=10

We know

AM≥GM

So

10[2a+2a+3b+3b+5c+...5times]≥[2a.2a.3b....5c]1011010≥[223355a2b3c5]1011≥223355a2b3c5223355≥a2b3c5(15)3102≥a2b3c5

So maximum value =(15)3×100