Trigonometry - verify identity:

cos (x - y) / sin (x + y) = 1 + cotxcoty / cotx + coty

The proof is given below.

Step-by-step explanation:

Given:

The identity to verify is given as:

Consider the left hand side of the identity.

Dividing both numerator and denominator by . This gives,

We have used the identity above.

Therefore,

Therefore, LHS = RHS and hence proved.

if you need just tell me and i will come to the rescue.

step-by-step explanation:

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.