Answer:
690
Step-by-step explanation:
Round from the tens place.
The question is related to trigonometry and we have to use the formula of double angle .
Here we use double angle formula of tangent function which is

Given expression is

Comparing it with double angle formula, we will get x = 5
SO the required expression is equal to


So the answer is tan(10) .
The formula to find the distance between points

and

is given as

, where

is the vertical distance between two points on the y-axis

is the horizontal distance between two points on the x-axis
Answer:
Correct choice is D.
.
Step-by-step explanation:
pick any two points from the table say (0,3) and (1,2)
Now we we can use both points to find the equation of line.
slope 
now plug slope m=-1 and any point say (0,3) into point slope formula





Hence correct choice is D.
.
Answer:
if those functions under the radical are multiplied together they can be expanded as:
I=((x1+x2)^2 - 1)*(1-(x1-x2)^2)/8
let u=x1+x2 and v=x1-x2
I = (u ^ 2–1) * (1-v ^ 2)
du = dx1 + dx2; dv = dx1-dx2;
dx1 * dx2 = (du-dx2) * (dx1-dv)
or-or-or ...
int(I)*dx1*dx2=5/2
Step-by-step explanation:
this is the correct answer you want
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