the length is 2 cm .more twise of the breath of rectangle.if the length is 10 cm.
157. =
1/2 = 1/4x + 3/4x^2
a(x+b)=c
make x the subject
c( a + d)/2
8776 ( 8793.00 + 17.00) / 2
answer = 1.99
7th term of (2a-2b)^9
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