answer this questions shown in image with complete step plz correct answer giving is mark as brainliest it is urgent
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Answer:
1. i) (23436-234)/990
= 23202/990
ii)0.0023bar
=(23-00)/9900
=23/9900
a = (2 - root5)/(2+ root5)
= (4+5-2root5)/4-5
= 2root5 - 9
since a and b are reciprocals of each other
b = 2root5 + 9
a^2 - b^2 = (a+b)(a-b)
= (4root5 )(-18)
=-72 root5
Answered by
1
Step-by-step explanation:
ans is -72root5 okokokokokokokokok okokokokokok okokokokokok
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