Find the positive square root of 7-4√3 1) 2-√3 2) 5-√3 3) 2-√√√5 4) 2+√5
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Find the positive square root of 7-4√3 1) 2-√3 2) 5-√3 3) 2-√√√5 4) 2+√5
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Answer:
7+4√3=4+3+4√3=22+(√3)2+2×2×√3=(2+√3)2
Step-by-step explanation:
7+4√3=4+3+4√3=22+(√3)2+2×2×√3=(2+√3)2
So 2+√3 is positive square root of 7+4√3