please tell the answers of the following equations!!!!!!!!!!!
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Answer:
1} √7/7
2} [√7+√6]/13
3} [√5-√2]/7
4} [√7+2]/9
Step-by-step explanation:
1} 1/√7 = (1/√7) × (-√7/-√7)
= -√7/(√7×-√7)
= -√7/-7
= √7/7
2} 1/(√7-√6) = 1/(√7-√6)×[(√7+√6)/(√7+√6)]
= [√7+√6]/[(√7×√7)-(√6×-√6)]
= [√7+√6]/7+6
= [√7+√6]/13
3} 1/(√5+√2) = [1/(√5+√2)]×[(√5-√2)/(√5-√2)]
= [√5-√2]/[(√5×√5) - (√2×-√2)]
= [√5-√2]/[5+2]
= [√5-√2]/7
4} 1/(√7-2) = [1/(√7-2)]×[(√7+2)/(√7+2)]
= [√7+2]/[(√7×√7) - (-2×2)]
= [√7+2]/7+2
= [√7+2]/9
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