Simplify: (sin θ − cos θ)2 − (sin θ + cos θ)2

a. -4sin(θ)cos(θ)
b. 2
c. sin^2θ
d. cos^2θ

The  Solution is below. That is the option a. -4sin (θ)cos (θ)

Step-by-step explanation:

Simplify: (sin θ − cos θ)2 − (sin θ + cos θ)2

Solution:

We know the Identity

Applying this Identity we get

Now Plus sin θ Minus sin θ and Plus cos θ Minus cos θ will cancel each other then we have,

The  Solution is the option a. -4sin (θ)cos (θ)

step-by-step explanation:

i could only see the first page. the other pages were blurry. ; -;

x hot dogs for 2$, y drinks for 3$. 29 items and total 70

2x+3y=70

x+y=29

if x=17and y=12

2(17)+3(12)=70

34+36=70