Question

a^2-1/a^2 is same as . (a) [a+1/a] , (b) [ a-1/a] [a-1/a] , (c) [a-1/a] [a+1/a] , (d) [a+1/a ] [a+1/a] . pls help me its urgent . give proper explanation.​

Answer 1

Answer:

${a}^{2} - \frac{1}{ {a}^{2} } = (a) {}^{2} - ( \frac{1}{a} ) {}^{2} = (a + \frac{1}{a} )(a - \frac{1}{a} )$

Option C.

Answer 2

Answer:

Answer:${a}^{2} - \frac{1}{ {a}^{2} } = (a) {}^{2} - ( \frac{1}{a} ) {}^{2} = (a + \frac{1}{a} )(a - \frac{1}{a} )$Option C