Question

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what is What is p2 + q2 formula?​

Answer 1

Step-by-step explanation:

The formula for p^2+q^2p

2

+q

2

is

p^2+q^2 = (p+q)^2 -2pqp

2

+q

2

=(p+q)

2

−2pq

or

p^2+q^2 = (p-q)^2+2pqp

2

+q

2

=(p−q)

2

+2pq

proof :

\begin{gathered}p^2+q^2 = (p+q)^2 -2pq\\\\RHS\\\\p^2+2pq+b^2-2pq\\\\p^2+q^2\\\\LHS\end{gathered}

p

2

+q

2

=(p+q)

2

−2pq

RHS

p

2

+2pq+b

2

−2pq

p

2

+q

2

LHS

hence LHS = RHS

thus , The formula is p^2+q^2 = (p+q)^2 -2pqp

2

+q

2

=(p+q)

2

−2pq