Question

if a equals to 2 +√3 find the value of a - 1 / a​

Answer 1

Step-by-step explanation:

here is ur answer mate hope u find it helpful

Answer 2

Step-by-step explanation:

Given a=2+root3

Given a=2+root3=> (1/a)= 1/(2+root3)

Given a=2+root3=> (1/a)= 1/(2+root3)Multiply and divide by (2-root3)

Given a=2+root3=> (1/a)= 1/(2+root3)Multiply and divide by (2-root3)=> (1/a)= (2-root3)/[(2+root3)(2-root3)]

Given a=2+root3=> (1/a)= 1/(2+root3)Multiply and divide by (2-root3)=> (1/a)= (2-root3)/[(2+root3)(2-root3)]=> (1/a)= (2-root3)/[4-3]

=> (1/a)= (2-root3)

=> (1/a)= (2-root3)=> a+(1/a) = (2+root3)+(2-root3)

=> (1/a)= (2-root3)=> a+(1/a) = (2+root3)+(2-root3)=4 this is your answer.

hope it helps you