2sin+5sin-3cos

It seems like you have an equation with both sine (sin) and cosine (cos) terms. In order to simplify an expression like this, we can use trigonometric identities.

First, let's rewrite the expression as:

2sin + 5sin - 3cos

Next, we can combine like terms by adding the sin terms together:

(2sin + 5sin) - 3cos

To simplify further, we can factor out sin:

(2 + 5)sin - 3cos

This simplifies to:

7sin - 3cos