Answer: option a.
Step-by-step explanation:
By definition, we know that:

Substitute
into the first equation, solve for the cosine and simplify. Then, you obtain:

As
then
:

Now we can find
:

Basically, the denominator will always be the number outside of the radical and the numerator will always be your exponent. If it’s one, you don’t put it in because if there is no exponent, it’s an invisible one
Are you finding the x-intercept
Answer:
9/10
Step-by-step explanation:
3/5÷4/6= 9/10
Hope this helps!
When the coefficient of eˣ, A, is:
-1 < A < 1
The graph shrinks