if x=√5+2,than find x-1/x
Answers
Answered by
2
Answer:
√5++1/√5+2
u can do rationalisation
if u want
Answered by
0
Answer:x=√5+2
x-1/x= (√5+2)-1/√5+2
=√5+2-1/√5+2
=√5+1/√5+2
=√5+1/√5+2×√5-2/√5-2
=(√5+1)(√5-2)÷(√5)²-(2)²
=√5(√5-2)+1(√5-2)
=5-2√5+√5-2
=3-√5
Step-by-step explanation:
Similar questions