Question Number 48656 by rahul 19 last updated on 26/Nov/18
Commented by rahul 19 last updated on 26/Nov/18
$${I}'{m}\:{getting}\:\left({b}\right)\:{but}\:{ans}.\:{is}\:\left({c}\right)! \\ $$
Commented by ajfour last updated on 26/Nov/18
$${i}\:{also}\:{get}\:{e}=\frac{{b}^{\mathrm{2}} }{{a}^{\mathrm{2}} }\:=\:\mathrm{tan}\:^{\mathrm{2}} \phi\:. \\ $$
Commented by rahul 19 last updated on 27/Nov/18
thanks sir for verification!��