Mathematics (class 11th): NCERT
by National Council of Educational Research and Training (NCERT)
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Q.1: If (a3+1,b–23) = (53,13), what is the value of a and b?
Sol:
(a3+1,b–23) = (53,13)
As the ordered pairs are equal, the corresponding elements will also be equal.
Therefore, a3+1=53 a3=53–1 a3=23
Therefore, a = 2
Now, b–23=13 b=13+23
Therefore, b = 1
Hence, a = 2 and b = 1
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