what is ab (pls hurry it is an emergency)
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Step-by-step explanation:
ac^2 = ab^2 + bc^2
(42)^2 = ab^2 + (26)^2
ab^2= (42)^2 -(26)^2
....... = (42+26) (42-26)
...... = 68* 16
ab = √ (68*16) = √ 1088
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