4. If p= -2,9=-1 and r= 3, find the value of :
(a) p² +q2 -r2
(b) 2p² ‐ q² 3r2
(d) p + q' + r3 +3 par (e) 3p²q + 5 pq² +2 pqr
(c) p-q-r
Answers
Answered by
0
Step-by-step explanation:
just put the values in each equation
(a) p² +q² -r²
(-2)²+(-1)²-(3)²
4 +1-9
5-9
-4
(b) 2p² ‐ q² 3r²
2(-2)²-(-1)²3(3)²
2(4) -(1)3(9)
8-27
-19
(c) p-q-r
-2-(-1)-3
-2+1-3
-1-3
-4
(d) p + q' + r3 +3 par
-2+(-1)+(3)³+3
-2-1+27+3
-3+29
26
(e) 3p²q + 5 pq² +2 pqr
3(-2)²(-1)+5(-2)(-1)²+2(-2)(-1)(3)
3(4)(-1)+5(-2)(1)+2(-2)(-3)
-12-10+12
0-10
-10
Similar questions
Physics,
4 months ago
Science,
4 months ago
Math,
8 months ago
Biology,
8 months ago
Environmental Sciences,
1 year ago
Social Sciences,
1 year ago
Math,
1 year ago