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a)
5²+6²=x²
25+36=x²
61=x²
x=√61
b)
4²+4²=x²
16+16=x²
32=x²
x=√32
x=4√2
c)
4²+6²=x²
16+36=x²
52=x²
x=√52
x=2√13
d)
4²+4²=x²
16+16=x²
32=x²
x=√32
x=4√2
2)
6²+5²=x²
36+25=x²
61=x²
x=√61
3)
a)
7²+4²=x²
49+16=x²
65=x²
x=√65
b)
3²+1²=x²
9+1=x²
10=x²
x=√10
c)
7²+2²=x²
49+4=x²
53=x²
x=√53
Proszę bardzo ;-)