- #1
lastdayx52
- 6
- 0
How in gods name do I do that? I attempted that integral and... it just can't be integrated!
What I tried:
That doesn't help one bit... How do I do this? NOTE: No graphing calculator is to be used.
Mark44 said:You have as the integrand
[tex]\sqrt{1 + (x - 1/(4x))^2}[/tex]
[tex]= \sqrt{1 + (x^2 - 1/2 + 1/16x^2)}[/tex]
When you group together the only terms that can be grouped, you'll have a perfect square under the radical.
latentcorpse said:when you squared out the (x-x/4)^2 you should have got 1/2 not 3/2. this should simplify things hopefully cause you should be able to factorise the numerator into
sqrt[(4x^2+1)^2]
Mark44 said:You have as the integrand
[tex]\sqrt{1 + (x - 1/(4x))^2}[/tex]
[tex]= \sqrt{1 + (x^2 - 1/2 + 1/16x^2)}[/tex]
When you group together the only terms that can be grouped, you'll have a perfect square under the radical.
Arc length is the distance along the curved line of a circle or other curved shape. It is measured in units of length, such as meters or inches.
Arc length can be calculated using the formula L = rθ, where L is the arc length, r is the radius of the circle, and θ is the central angle subtended by the arc in radians.
Yes, arc length can be calculated without a calculator by using basic geometry and trigonometry principles, such as the Pythagorean theorem and the sine and cosine functions.
Arc length is the distance along a curved line, while circumference is the distance around the outside of a circle. Arc length is a portion of the circumference, and can be found by dividing the circumference by the central angle in radians.
Arc length is commonly used in fields such as physics, engineering, and architecture to calculate the distance along curved paths, such as the trajectory of a projectile or the length of an arc of a bridge. It is also used in navigation and mapmaking to measure curved routes or boundaries.