Question

-
(v) 2xy
If p = -2. q = -1 and r = 3. find the value of
(1) p? + q? -
(iv) p + q + r + 3 por
(11) 2p? - q? + 3r?
(v) 3p q +5 pq? + 2 par
(111) P-9-T
(vi) p + q' -​

Answer 1

Answer:

we know that. p= (-2) q= (-1) r= 3

Step-by-step explanation:

1) p + q =

=(-2) + (-1)

=(-3)

2) p + q + r + 3

= (-2) + (-1) + 3 + 3

=(-3) +3 + 3

= (-3) + 6 = 3

3) 2p - q + 3 r

= 2(-2) - (-1) + 3 (3)

= (-4) + 1 + 6

= (-4) + 7

= 3

4) 3pq + 5pq + 2

= 3 (-2 × -1) + 5 (-2 × -1) + 2

= -6 -15 + 2

= ( -21 ) + 2

= -19

5) ❌❌❌ you have not given the value of t

6) p + q

= (-2) + (-1)

(-2) + (-1) =(-3)