Question

Plz mates help me in solving this question based on SURDS....???!!!!!​

Answer 1

Solution:

x = c√b+4 ---(1)

x+1/x

= (c√b+4)+1/(c√b+4)

= [(c√b+4)²+1]/(c√b+4)

= (b²c+16+8c√b+1)/(c√b+4)

•••

Answer 2

Solution:-

Given that:-

x = c√b + 4

On Reciprocal,

1/x = 1/( c√b +4).

Putting the value of x & 1/x. we get,

=> x + 1/x

=> (c√b + 4) + 1/(c√b +4)

=> [(c√b+4)(c√b+4) + 1]/ (c√b +4)

=> [ c²b + 4c√b + 4c√b + 16 +1]/ (c√b +4)

=> [ c²b + 8c√b + 17] / (c√b +4)

Hence,

The Value of x + 1/x is [ c²b + 8c√b + 17] / (c√b +4).