Question

if a - 1/a=5 find a2. + 1/a2 -3a +3/a pls ansr I will mark you as brainliest​

Answer 1

Answer:

12

Step-by-step explanation:

(a-1/a)^2 = a^2 + 1/a^2 -2

so a^2 + 1/a^2 = (a-1/a)^2 +2 Using this we can find the values.

a^2+ 1/a^2 -3a +3/a

(a-1/a)^2 +2 -3(a-1/a)

5^2 +2 -3(5)

25+2-15

12