How do you simplify the expression $(1-sin^2alpha)/sin^2alpha$ ?

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Answer 1 · 2018-03-19T03:28:52

$=> color(green)(1$

$(1 - sin^2 alpha) / cos^2 alpha$

$=> cos^2 alpha / cos ^2 alpha color(white)(aaa)$ as $color(red)(sin^2 alpha + cos^2 alpha = 1$

$=> cancel(color(red)(cos^2 alpha))/ cancel(color(red)(cos^2 alpha)) = color(green)(1$

How do you simplify the expression (1-sin^2alpha)/sin^2alpha(1-sin^2alpha)/sin^2alpha?