Answer:

Step-by-step explanation:
we have

Solve for x
Applying difference of squares in the denominator of the second term in the left side

Multiply both sides by (x+3)(x-3)

Apply the distributive property in the left side

Combine like terms left side

Group terms


Divide by 3 both sides

Answer:
The domain of function( f+ g)(x) ( (-∞,∞))
Step-by-step explanation:
Given ( f + g)x = f(x) +g(x)
The domain of function (f + g)(x) is (-∞,∞)
<em>Example:-</em>
<em>f(x) = 2 x² + 3x and g(x) = 4x² +3</em>
<em>(f + g)(x) = f(x) +g(x)</em>
<em> = 2 x² + 3x + 4 x² + 3</em>
<em> = 6x ² + 3 x + 3</em>
<em>The domain of (f + g) (x) is ( -∞,∞))</em>
Ac - ab = 2
Factor out a
a(c-b) = 2
Then divide the expression by c-b to solve for a.
Do this on both sides.
a(c-b)/(c-b) = 2/(c-b)
a = 2/c-b
The solution is a = 2/c-b.
I think it is B. and C.
secx = 3 and tanx = 3
Hope it helps