Katoni bought 1 1/2 dozen pencils. There are 12 pencils in a dozen. How many pencils did Katoni buy?
1 answer:
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Given: 3y cos x = x² + y²
Define
Then by implicit differentiation, obtain
3y' cos(x) - 3y sin(x) = 2x + 2y y'
y' [3 cos(x) - 2y] = 2x + 3y sinx)
Answer:
Define
Then by implicit differentiation, obtain
3y' cos(x) - 3y sin(x) = 2x + 2y y'
y' [3 cos(x) - 2y] = 2x + 3y sinx)
Answer:
<span>L = </span>α<span> * R where L is the length of the arc of the circle, R is the radius of the circle, and </span>α<span> is the central angle expressed in radians, so
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