Question

Hwlp i dont understand this ​

Answer 1

The proof takes a long way around, so let me be straightforward.

Pre-required knowledge:-

`\boxed{\tan\theta=(\sin\theta)/(\cos\theta)}`

The tangent ratio in two other ratios.

`\boxed{\sin\theta\csc\theta=\cos\theta\sec\theta=\tan\theta\cot\theta=1}`

The reciprocal relation. It is not defined for the zero value.

The problem requires the form in
`\cot x`.

`\frac{1}{\cos x\csc{}^(2) x}`

`=(\sin x)/(\cos x\csc x)`

`=(\sin x)/(\cot x)`

So, this is how it is done.