answer question 15,16,17,20,22
100% I will mark u as brainliest
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15) Sum of first 12 multiples of 2=156
Sum of first 12 multiples of 3=234
16)Answer=1:9
OR
PR²=2PQ²
PR²=PQ²+PQ²
PR²=PQ²+QR²_________(PQ=QR)
From converse of Pythagoras theorem we can say that,
∆PQR is right angled
17)x=-2
y=5
20)x=-2, x=4
22)p(x)=2x²+3x+1
arjunnani:
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I am an Indian
name
Deegenius
from
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state
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