JEE MATHEMATICS MCQ: TRIGONOMETRY RATIOS

1 Easy

1 of 1

Application +4 | -1

The function

f\left( x \right) = a\cos x + b\tan x + x

has extreme values at

x = 0

and

x = \frac{\pi }{6}

, then

View answer and explanation

Correct option: A

a = - \frac{2}{3},b = - 1

Option C (0,0) is correct because when the tangent is perpendicular to the x-axis, the slope is infinite, implying t=0, which gives the point (0,0).

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