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Earn +20 ptsQ: Fx1-cos7x-pi5x-pi2 at the point x pi?
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What is the equation of the line tangent to the curve y equals cos x at the point x equals pi over 6?
y = 2(x) - (pi/3) + (sqrt(3)/2)
What's the formula for the circumference of a circle?
2 x pi x radius or pi x diameter where pi = 3.14159265
Diameter radius circumference pi?
Circumfrence=Pi x Diamter=Pi x 2Radius
How do you find the are of a cylinder?
surface area=2 x pi x r² + 2 x pi x r x h volume = pi x r² x h
What is the circumference of a circle with an area of 81?
In every circle . . .Area = (pi) x (radius)2Diameter = 2 x radiusCircumference = (pi) x diameterIn this circle, Area = (pi) R2 = 81R2 = 81/piR = sqrt( 81/pi )Diameter = 2 x sqrt( 81/pi )Circumference = (pi) x 2 x sqrt( 81/pi ) = 2 x sqrt( 81 pi ) = 18 sqrt(pi) = 31.9042 (rounded)
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