Question

18. If a=7-413 then a - 1/a is equal to *
O (a) 14
O (b) - 843
0 (c) 7+443
(d) None of the above

Answer 1

Answer:

$<marquee>option number c is correct$

Answer 2

Answer : (d)

steb by step explanation :

a = 7- 413

= -406

then, substitute a value in a-1/a

= (-406) - (1/-406)

= (-406) + (1/406)

LCM is 406

= [(-406x406) + 1] / 406

= [-164836 + 1] / 406

= -164835 / 406

= 405.997536946

So answer is (d)