EXERCISE 7.7
Chapter 9: Chapter 12 · MATHEMATICS-VOLUME 2 · EN medium
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EXERCISE . ( ) (i) concave upwards on −∞ , and , ∞ ) . Concave downwards on Points of inflection , − ) and (ii) concave upwards on . Concave downwards on , π and Points of inflection π , and π , (iii) concave upwards on , ∞ ) . Concave downward on −∞ , Points of inflection ( ) (i)local minimum = − ; local maximum = (ii)local minimum = − (iii)local minimum = ; local maximum = e ( ) strictly increasing on −∞− , and , ∞ . strictly increasing on − local maximum = , local minimum = − concave downwards on −∞− ; concave upwards on − ∞ , point of inflection − EXERCISE . ( ) , ( ) ( ) ( ) m ( ) 9cm , 6cm ( ) 1200m ( ) ( ) r , r ( ) 6cm , 6cm , 3cm ( ) π , EXERCISE .
📖 Class 12 Mathematics English Volume 2 2025 Edition www.tntextbooks.in · Page 259
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EXERCISE . ( ) (i) concave upwards on −∞ , and , ∞ ) . Concave downwards on Points of inflection , − ) and (ii) concave upwards on . Concave downwards on , π and Points of inflection π , and π , (iii) concave upwards on , ∞ ) .
Concave downward on −∞ , Points of inflection ( ) (i)local minimum = − ; local maximum = (ii)local minimum = − (iii)local minimum = ; local maximum = e ( ) strictly increasing on −∞− , and , ∞ . strictly increasing on − local maximum = , local minimum = − concave downwards on −∞− ; concave upwards on − ∞ , point of inflection − EXERCISE . ( ) , ( ) ( ) ( ) m ( ) 9cm , 6cm ( ) 1200m ( ) ( ) r , r ( ) 6cm , 6cm , 3cm ( ) π , EXERCISE . ( ) (i) x = − , x = , y = (ii) x = − , y − ,
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