If the slope of tangent to the curve y = ax3 – bx2 at x = 1 is equal to 3, where a
[1,2] then number of possible integral values of b is
If the slope of tangent to the curve y = ax3 – bx2 at x = 1 is equal to 3, where a [1,2] then number of possible integral values of b is
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y (x) = 2x – x2
y? (x) = 2x log 2 – 2x
M = 3
N = 2
M + N = 5
y = x3
Equation of tangent y – t3 = 3t2 (x – t)
Let again meet the curve at
=> t1 = -2t
Required ordinate =
Given f(X) =
So
put
(i) + (iii), f(x) +
Hence f(e) +
f' (x) = cosx + sinx − k ≤ 0∀x ∈ R
k ≥ √2
f (x) = x? /20 - x? /12 + 5
f' (x) = x? /4 - x³/3 = x³ (x/4 - 1/3)
Local maxima at 0, Local minima at 4/3
f' (x) = x³ - x² = x² (x-1)
x = 1 point of inflection
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