Hey please solve this problem!!!
Attachments:
Answers
Answered by
5
a= 3-2√2
1/a = 1/(3-2√2) = (3+2√2) [rationalize demo]
NOW,
a^2 - 1/a^2 = (a+1/a)(a-1/a)
= (3-2√2+3+2√2)(3-2√2-3-2√2)
= 6(-4√2)
= - 24√2 ANSWER
1/a = 1/(3-2√2) = (3+2√2) [rationalize demo]
NOW,
a^2 - 1/a^2 = (a+1/a)(a-1/a)
= (3-2√2+3+2√2)(3-2√2-3-2√2)
= 6(-4√2)
= - 24√2 ANSWER
Similar questions