Question

express in simplest form: sec 0 • cot 0 • sin 0

Answer 1

$\sec \theta.\cot \theta.\sin \theta$

Note that;

secθ = 1/cosθ cotθ= cosθ/sinθ

substitute into into the expression

$\sec \theta.\cot \theta.\sin \theta=\frac{1}{\cos\theta}.\frac{\cos \theta}{\sin \theta}\text{. sin}\theta$

cosθ at the numerator will cancel out the cosθ at the denominator, also sinθ at the numerator will cancel out the sinθ at the denominator

$=1$