Application of DerivativeHard
Question
The radius of a spherical soap bubble is increasing at the rate of 0.2 cm/sec, then the rate of increase of its surface area, when the radius is 7 cm.
Options
A.12.2 π cm2/sec
B.11.2 π cm2/sec
C.10.2 π cm2/sec
D.9.2 π cm2/sec
More Application of Derivative Questions
If a1, a2 ........ an ∈ R+ and a1, a2 .......an = 1 then the least value of (1 + a1 + a21 ) (1 + a2 + a22 )....(1 ...The normal to the curve x = a (cos θ + θ sin θ) y = a (sin θ - θ cos θ) any point ′&...The point where the tangent line to the curve y = e2x at (0,1) meets x- axis is-...If = is a tangent to the curve x = Kt, y = , K > 0 then :...The slopes of the tangents to the curve y = (x + 1) (x − 3) at the points where it crosses x- axis are -...