Question

(x^4+1)/x^2=3 হলে (x^6+1)/x^3 এর মান কত?​

Answer 1

Answer:

(x^4 +1)/x^2 = x^2 + 1/x^2 +2 = 3+2=5

(x^2 + 1/x^2) + 2.x.1/x = 5

(x + 1/x) = √5

(x^6 + 1/x^6)/x^3 = x^3 + 1/x^3

=(x + 1/x) ^3- 3x.(1/x) ( x+ 1/x)

=(√5)^3 - 3√5

=5√5 - 3√5 = 2√5 Ans