Which double angle or half angle identity would you use to verify the following: csc x sec x = 2 csc 2x

b

Step-by-step explanation:

I would use b.

Why?

I applied the identity sin(2x)=2sin(x)cos(x) in line 3 to 4.

OPTION B.

Step-by-step explanation:

It is important to remember these identities:

Knowing this, we can say that:

Now we need to use the following Double angle identity :

And solve for :

The next step is to make the substitution into and finally simplify:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?