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Deepak Patra posted an Question
November 06, 2021 • 02:07 am
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30 points
30 points
- IIT JAM
- Mathematics (MA)
Let f(sin a) < 0 and f"(sin a) > 0vr e (0.5 and g(r) = f(sin a) + f(cos ). which of the following is/are not true? g(r) is decreasing in g or) g(c) increasing i
Let f(sin a) < 0 and f"(sin a) > 0Vr e (0.5 and g(r) = f(sin a) + f(cos ). Which of the following is/are NOT True? g(r) is decreasing in G or) g(c) increasing in (0, gx) is monotonically increasing in (o Ogc) is decreasing in (0, T/4)
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Anonymous User![best-answer]()
check attachment
understand
what's ur dabut
sir how f' (cos x) <0 ...
how???
in this interval Cosx
check
now understand
sir what about f' (sinx) and f'(cosx)... which one is greater and how ????
g '(pi/4) =0 so pi/4 is extreme point (0,pi/4) and g(x) decrease then (pi/4,pi/2) g(x) increasing
understand