bantuin dong, terserah nomer berapa aja, nanti di follow
Matematika
Sassy95
Pertanyaan
bantuin dong, terserah nomer berapa aja, nanti di follow
2 Jawaban
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1. Jawaban tiktok33
a. )2p - 3q + 4pq -r
=2 x (-1) + 3 x 1 + 4 x (-1) x 1 - (-2)
= (-2) + 3 - 4 - (-2)
= -1
b.) pq² - p²+q - r
=(-1) x 1² - (-1)² + 1 - (-2)
=(-1) -1 + 3
=1
c.) p² + q² +r2
=(-1)² + 1² + (-2) x 2
=1 +1 - 4
=-2
d.) p² - q² - r²
=(-1)² - 1² -(-2)²
=1-1-4
=-4
e.) pq + pr + qr
=(-1) x 1 + 1 x (-2) + 1 x (-2)
=(-1) + (-2) + (-2)
=(-5) -
2. Jawaban ginantynababanoyl6qe
[tex] a) \: 2( - 1) - 3( - 1) + (1 \times 1) - ( - 2) \\ - 2 - 3 + 4 + 2 = 1 \\ b ) \: - 1( { - 1}^{2} ) - ( { - 1)} ^{2} + 1 - ( - 2) \\ - 1 - 1 + 1 + 2 = 1 \\ c) {( - 1)}^{2} + ({1})^{2} + ( - 2)2 \\ 1 + 1 - 4 = -2 \\ d) {( - 1)}^{2} - {(1)}^{2} - {(2)}^{2} \\ 1 - 1 - 4 = - 4 \\ e) - 1(1) - 1(2) + 1(2) \\ - 1 - 2 + 2 = - 1[/tex]