Answer:
true
I would appreciate if you would chose my answer as a brainliest answer
The key is to cross 1 number from both sides till you get to the middle last number so the answer is 4
Given:
Consider the given function:

To prove:

Solution:
We have,

Substituting
, we get




Substituting
, we get




Substituting
, we get




Using the algebraic formula, we get
![[\because b^2-a^2=(b-a)(b+a)]](https://tex.z-dn.net/?f=%5B%5Cbecause%20b%5E2-a%5E2%3D%28b-a%29%28b%2Ba%29%5D)

[Commutative property of addition]
Now,




Hence proved.
120+34=154
180-154=26
Angle acb=26