Question

Find the value of Psquare q -pq+qsquare if p=2 and q=1

Answer 1

Answer:

AM≥GM⟹

2

p+q

≥

pq

squaring on both sides

(p+q)

2

≥4pq

p

2

+q

2

+2pq≥4pq

1≥2pq⟹pq≤

2

1

(p+q)

2

=1+2pq≤1+1

(p+q)

2

≤2⟹p+q∈[−

2

,

2

]

The maximum value of p+q is

2

please like, follow

Answer 2

Answer:

p²q-pq+q².

p=2. q=1.

(2)²(1)-(2)(1)+(1)².

(4)(1)-(2)+(1).

(3)-(2)+(1).

3-3.

0.

I think this is your answer.