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A projectile is fired at an angle of \(45^\circ\) with the horizontal.
Elevation angle of the projectile at its highest point as seen from the point of projection is
(a) \(tan^{-1} (\frac {\sqrt 3}{2})\)
(b) \(45^\circ\)
(c) \(60^\circ\)
(d) \(tan^{-1} \frac{1}{2}\)
Updated Wed, 28 Aug 2019 10:24 am
Please solve it.
If f(x) = x\(^2\) -2x + 4, then f(x) has
(a) a minimum at x = 1
(b) a maximum at x = 1
(c) no extreme point
(d) no minimum
Updated Mon, 26 Aug 2019 02:04 pm