Question

Sum and Difference Identities. Fine the exact value.

Tbh I just need to know if I did this right.

Answer 1

To find the exact value of I₁, substitute the given equations into the first equation and solve for I₁. The exact value of I₁ is -12.5 - 52₁.

Step-by-step explanation:

To find the exact value of I₁, we can substitute the given equations into the first equation and solve for I₁. The given equations are:

I₁ = I₂ + 13

I₂ = (6 - 21₁) + (22.5 - 31₁)

Substituting the second equation into the first one, we get:

I₁ = (6 - 21₁) + (22.5 - 31₁) + 13

We simplify the equation and combine like terms:

I₁ = -12.5 - 52₁

This is the exact value of I₁.