if X square + 1 / x square is equal to 7 find the value of x square - 1 / x square
Answers
Answered by
2
see this answer it is right or wrong??
Attachments:
Answered by
2
X sq. +1/x sq. =7
1/x sq. =7-x sq.
-1/x sq.=-7+x sq.
then
X sq. -7+x sq.
=2X sq.-7
1/x sq. =7-x sq.
-1/x sq.=-7+x sq.
then
X sq. -7+x sq.
=2X sq.-7
Similar questions