<span>For this case we have the following expression:
</span>
<span> We are going to make the following change of variables:
</span>
<span>Rewriting the expression we have:
</span>
<span>Factoring the expression we have:
</span>
<span>Canceling similar terms we have:
</span>
<span>Returning the change we have:
</span>
<span> The resctrictions of the function are those that make the denominator equal to zero.
We have then:
</span>
<span>
Answer: The simplified expression is: </span>
<span>
The restrictions are: </span>
We have the formula: sec x = 1 / cos x;
Then, sec (5pi/4) = 1/ cos (5pi/4);
But, cos (5pi/4) = cos (pi + pi/4);
We use the formula: cos (pi + y) = - cosy;
Then, cos (pi + pi/4) = -cos(pi/4) = -
Finally, sec (5pi/4) = -
Let's call this blank X
x÷4=9
x=4×9
x=36
hope that helped
Answer:
I donot know the answer sorry baby
Answer:
b...................................