Question

sin.cos = ????
tan.cot=???​

Answer 1

Answer:

Step-by-step explanation:

Sin.cos=sin√1-cos^2

Tan.cot=1

Answer 2

There is no identity or formula of sin.cos but,
$\tan\theta \times \cot\theta = 1$
Please be aware that
$\cos\theta \times \sec\theta = 1$
$\sin\theta \times \cosec\theta = 1$

You might be confused with the first one, there is no identity of $\sin\theta\times\cos\theta$ but,
$\sin^{2}\theta \: + \cos^{2} \theta = 1$
Also,
$\tan\theta=(\sin\theta/\cos\theta)$