What is the rate when r is equal to three

Reference no: EM131009045

1. The area of a sector in a circle is given by the formula: A=1/2r²θ, where r is the radius and θ is the central angle measured in radians. Find the rate of change of A with respect to θ if r remains constant. What is the rate when r=3?

2. An object moves along a coordinate line, its position at each time t ≥ 0 is given by x(t)=t²+5t+1. Find the velocity at time t₀=5.

Reference no: EM131009045

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