A isosceles triangle is a triangle who has two sides of the same length
Answer:68.2
Step-by-step explanation:
cos6=71/EF
cos6= 0.960170286650366
0.960170286650366= 71/EF
0.960170286650366*71=EF
EF= 68.2
<span>So we have a problem with two unknows and one equation. We have to express one over the other like this: 7a - 2b = 5a + b. First we separate one kind on the left side and the other kind on the right side: 7a - 5a = b + 2b. Then: 2a = 3b. Now we divide both sides by 2 and get: a= 3b/2.</span>
One way to capture the domain of integration is with the set

Then we can write the double integral as the iterated integral

Compute the integral with respect to
.

Compute the remaining integral.

We could also swap the order of integration variables by writing

and

and this would have led to the same result.

