Question

p^2+q^2=25
2p+3q=17
what is the answer of p&q
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Answer 1

Answer:

hope it helps u dear

Step-by-step explanation:

p&q = p2 + q2 – 2pq, for what value of q is p&q equal to p2 for all values of p?

a)-2

b)-1

c)0

d)1

e)2

(p2=p to the power 2)

C

p2 + q2 – 2pq = p2

=> q2 - 2pq = 0

=> q (q - 2p) = 0

=> q = 0 or q = 2p

im not following the logic you used here.. how did you replace p&q with 0 could someone help explain it in MORE DETAIL

Given (I am assuming the sign before 2pq is '-')

We want the value of q such that

i.e.

This means that should be 0 so that left side becomes equal to right side.

If q = 0, both q^2 and 2pq will become 0.

or you can do it algebraically too:

So if q = 0 or if q = 2p, p&q will be equal to .

We have q = 0 in the options hence answer (C)

Answer 2

Answer:

1. p = 1
2. q= 5

Step-by-step explanation:

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