JEE Main 2019 — Math solution | Fundamenthol

JEE Main2019Math

Q.

Let f(x) = log_e(sinx), (0 < x < $π$ ) and g(x) = sin^–1 (e^–x), (x $\geq$ 0). If $α$ is a positive real number such that a = (fog)' ( $α$ ) and b = (fog)( $α$ ), then :

A
a $α$ ² – b $α$ – a = 1
B
a $α$ ² + b $α$ + a = 0
C
a $α$ ² – b $α$ – a = 0
D
a $α$ ² + b $α$ – a = –2 $α$ ²

Solution

← Back to full paper

Practice more Math

Concept-wise practice with instant solutions on Fundamenthol.

Start practicing →