Question

Can anyone help me with these math problems?

Answer 1

Sure. I'm not sure if I like the computer aided instruction.

`(\tan A)/(\sec A) = ( \sin A / \cos A )/(1 / \cos A) = (\sin A \cos A)/(\cos A) = \sin A`

so in the first block they want sin A and in the second block sin A cos A

Show

`\sec \theta \cot \theta \sin \theta =1`

Proof,

`\sec \theta \cot \theta \sin \theta =(1)/(\cos \theta) \cdot (\cos \theta)/(\sin \theta) \cdot \sin \theta = 1`

Looks like the box is cos θ