Jika p=-1 , q= 1 , dan r = -2 , hitunglah nilai dri bntk aljabar brkt! A.2p - 3q + 4pq - r B. Pq2 -p2 + q - r C. P2 +q2 +r2 D.p2 - q2 - r2 E. Pq + pr + qr
Matematika
Azzahraks2005
Pertanyaan
Jika p=-1 , q= 1 , dan r = -2 , hitunglah nilai dri bntk aljabar brkt!
A.2p - 3q + 4pq - r
B. Pq2 -p2 + q - r
C. P2 +q2 +r2
D.p2 - q2 - r2
E. Pq + pr + qr
A.2p - 3q + 4pq - r
B. Pq2 -p2 + q - r
C. P2 +q2 +r2
D.p2 - q2 - r2
E. Pq + pr + qr
1 Jawaban
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1. Jawaban fahmiilyas
A.2p-3q+4pq-r
=2.1-3.1+4.1.1-(-2)=5
B.pq2-p2+q-r
=1.1.2-1.2+1-(-2)=3
C.p2-q2+r2
=1.2-1.2+(-2).2=-4
D.p2-q2-r2
=1.2-1.2-(-2).2=4
E.pq+pr+qr
=1.1+1.-2+1.-2=-3
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