Square root of 16-6 root 7
Answers
Answered by
1
Step-by-step explanation:
0.125492 is the answer
Answered by
2
Answer:
3 - √7
Step-by-step explanation:
√( 16 - 6√7)
= √( 16 - 2 × 3√7)
= √( 16 - 2 × √9√7)
= √( 16 - 2 √63 )
= √( 9 + 7 - 2√ ( 9× 7 )
= √ [√9 - √7 )^2 ]
= √9 - √7
= 3 - √7
Note : used √(a - b)^2 = (a - b)
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