Solve each equation for 0≤x≤360
cos(x+45°)+cos(x-45°)= √2

0°

360°

Step-by-step explanation:

We want to solve the equation,

We expand using trigonometric identities to get;

Simplify;

Simplify;

Add

Divide by 2

Take cosine inverse;

In the

Also in the 3rd quadrant cosine ratio is positive.

step-by-step explanation:

f(x)=2x^2 -1 

translation is a function transformation that transform the function in a way of translating. by translating the function its graph is moved  up an down. moving the function f(x) 2 units to the left will be the new function g(x) with the equation: g(x)=f(x+2)=2(x+2)^2 -1