Question

If tan(theta)=1/x then tan (90-theta)=

Answer 1

$$$
tan(y) = 1/x
$$$

$$$
where y = theta (I cant type theta every time..)
$$$

$$$
tan( 90 - y) = cot( y) = 1/tan( y) = 1/(1/x) = x.
$$$